21639750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:135

約数の個数: 128

約数和(自身を含む): 61281792

約数和(自身を除く): 39642042

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 25, 30, 33, 43, 50, 55, 61, 66, 75, 86, 110, 122, 125, 129, 150, 165, 183, 215, 250, 258, 275, 305, 330, 366, 375, 430, 473, 550, 610, 645, 671, 750, 825, 915, 946, 1075, 1290, 1342, 1375, 1419, 1525, 1650, 1830, 2013, 2150, 2365, 2623, 2750, 2838, 3050, 3225, 3355, 4026, 4125, 4575, 4730, 5246, 5375, 6450, 6710, 7095, 7625, 7869, 8250, 9150, 10065, 10750, 11825, 13115, 14190, 15250, 15738, 16125, 16775, 20130, 22875, 23650, 26230, 28853, 32250, 33550, 35475, 39345, 45750, 50325, 57706, 59125, 65575, 70950, 78690, 83875, 86559, 100650, 118250, 131150, 144265, 167750, 173118, 177375, 196725, 251625, 288530, 327875, 354750, 393450, 432795, 503250, 655750, 721325, 865590, 983625, 1442650, 1967250, 2163975, 3606625, 4327950, 7213250, 10819875, 21639750]

約数ペア:

[(1, 21639750), (2, 10819875), (3, 7213250), (5, 4327950), (6, 3606625), (10, 2163975), (11, 1967250), (15, 1442650), (22, 983625), (25, 865590), (30, 721325), (33, 655750), (43, 503250), (50, 432795), (55, 393450), (61, 354750), (66, 327875), (75, 288530), (86, 251625), (110, 196725), (122, 177375), (125, 173118), (129, 167750), (150, 144265), (165, 131150), (183, 118250), (215, 100650), (250, 86559), (258, 83875), (275, 78690), (305, 70950), (330, 65575), (366, 59125), (375, 57706), (430, 50325), (473, 45750), (550, 39345), (610, 35475), (645, 33550), (671, 32250), (750, 28853), (825, 26230), (915, 23650), (946, 22875), (1075, 20130), (1290, 16775), (1342, 16125), (1375, 15738), (1419, 15250), (1525, 14190), (1650, 13115), (1830, 11825), (2013, 10750), (2150, 10065), (2365, 9150), (2623, 8250), (2750, 7869), (2838, 7625), (3050, 7095), (3225, 6710), (3355, 6450), (4026, 5375), (4125, 5246), (4575, 4730)]