21521500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1$

素因数の和:93

約数の個数: 192

約数和(自身を含む): 64576512

約数和(自身を除く): 43055012

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 25, 26, 28, 35, 43, 44, 50, 52, 55, 65, 70, 77, 86, 91, 100, 110, 125, 130, 140, 143, 154, 172, 175, 182, 215, 220, 250, 260, 275, 286, 301, 308, 325, 350, 364, 385, 430, 455, 473, 500, 550, 559, 572, 602, 650, 700, 715, 770, 860, 875, 910, 946, 1001, 1075, 1100, 1118, 1204, 1300, 1375, 1430, 1505, 1540, 1625, 1750, 1820, 1892, 1925, 2002, 2150, 2236, 2275, 2365, 2750, 2795, 2860, 3010, 3250, 3311, 3500, 3575, 3850, 3913, 4004, 4300, 4550, 4730, 5005, 5375, 5500, 5590, 6020, 6149, 6500, 6622, 7150, 7525, 7700, 7826, 9100, 9460, 9625, 10010, 10750, 11180, 11375, 11825, 12298, 13244, 13975, 14300, 15050, 15652, 16555, 17875, 19250, 19565, 20020, 21500, 22750, 23650, 24596, 25025, 27950, 30100, 30745, 33110, 35750, 37625, 38500, 39130, 43043, 45500, 47300, 50050, 55900, 59125, 61490, 66220, 69875, 71500, 75250, 78260, 82775, 86086, 97825, 100100, 118250, 122980, 125125, 139750, 150500, 153725, 165550, 172172, 195650, 215215, 236500, 250250, 279500, 307450, 331100, 391300, 413875, 430430, 489125, 500500, 614900, 768625, 827750, 860860, 978250, 1076075, 1537250, 1655500, 1956500, 2152150, 3074500, 4304300, 5380375, 10760750, 21521500]

約数ペア:

[(1, 21521500), (2, 10760750), (4, 5380375), (5, 4304300), (7, 3074500), (10, 2152150), (11, 1956500), (13, 1655500), (14, 1537250), (20, 1076075), (22, 978250), (25, 860860), (26, 827750), (28, 768625), (35, 614900), (43, 500500), (44, 489125), (50, 430430), (52, 413875), (55, 391300), (65, 331100), (70, 307450), (77, 279500), (86, 250250), (91, 236500), (100, 215215), (110, 195650), (125, 172172), (130, 165550), (140, 153725), (143, 150500), (154, 139750), (172, 125125), (175, 122980), (182, 118250), (215, 100100), (220, 97825), (250, 86086), (260, 82775), (275, 78260), (286, 75250), (301, 71500), (308, 69875), (325, 66220), (350, 61490), (364, 59125), (385, 55900), (430, 50050), (455, 47300), (473, 45500), (500, 43043), (550, 39130), (559, 38500), (572, 37625), (602, 35750), (650, 33110), (700, 30745), (715, 30100), (770, 27950), (860, 25025), (875, 24596), (910, 23650), (946, 22750), (1001, 21500), (1075, 20020), (1100, 19565), (1118, 19250), (1204, 17875), (1300, 16555), (1375, 15652), (1430, 15050), (1505, 14300), (1540, 13975), (1625, 13244), (1750, 12298), (1820, 11825), (1892, 11375), (1925, 11180), (2002, 10750), (2150, 10010), (2236, 9625), (2275, 9460), (2365, 9100), (2750, 7826), (2795, 7700), (2860, 7525), (3010, 7150), (3250, 6622), (3311, 6500), (3500, 6149), (3575, 6020), (3850, 5590), (3913, 5500), (4004, 5375), (4300, 5005), (4550, 4730)]