21322730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:112

約数の個数: 96

約数和(自身を含む): 48066048

約数和(自身を除く): 26743318

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 31, 37, 55, 62, 65, 74, 110, 130, 143, 155, 169, 185, 286, 310, 338, 341, 370, 403, 407, 481, 682, 715, 806, 814, 845, 962, 1147, 1430, 1690, 1705, 1859, 2015, 2035, 2294, 2405, 3410, 3718, 4030, 4070, 4433, 4810, 5239, 5291, 5735, 6253, 8866, 9295, 10478, 10582, 11470, 12506, 12617, 14911, 18590, 22165, 25234, 26195, 26455, 29822, 31265, 44330, 52390, 52910, 57629, 62530, 63085, 68783, 74555, 115258, 126170, 137566, 149110, 164021, 193843, 288145, 328042, 343915, 387686, 576290, 687830, 820105, 969215, 1640210, 1938430, 2132273, 4264546, 10661365, 21322730]

約数ペア:

[(1, 21322730), (2, 10661365), (5, 4264546), (10, 2132273), (11, 1938430), (13, 1640210), (22, 969215), (26, 820105), (31, 687830), (37, 576290), (55, 387686), (62, 343915), (65, 328042), (74, 288145), (110, 193843), (130, 164021), (143, 149110), (155, 137566), (169, 126170), (185, 115258), (286, 74555), (310, 68783), (338, 63085), (341, 62530), (370, 57629), (403, 52910), (407, 52390), (481, 44330), (682, 31265), (715, 29822), (806, 26455), (814, 26195), (845, 25234), (962, 22165), (1147, 18590), (1430, 14911), (1690, 12617), (1705, 12506), (1859, 11470), (2015, 10582), (2035, 10478), (2294, 9295), (2405, 8866), (3410, 6253), (3718, 5735), (4030, 5291), (4070, 5239), (4433, 4810)]