21731310

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7789}}^1$

素因数の和:7833

約数の個数: 48

約数和(自身を含む): 58331520

約数和(自身を除く): 36600210

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 7789, 15578, 23367, 38945, 46734, 70101, 77890, 116835, 140202, 233670, 241459, 350505, 482918, 701010, 724377, 1207295, 1448754, 2173131, 2414590, 3621885, 4346262, 7243770, 10865655, 21731310]

約数ペア:

[(1, 21731310), (2, 10865655), (3, 7243770), (5, 4346262), (6, 3621885), (9, 2414590), (10, 2173131), (15, 1448754), (18, 1207295), (30, 724377), (31, 701010), (45, 482918), (62, 350505), (90, 241459), (93, 233670), (155, 140202), (186, 116835), (279, 77890), (310, 70101), (465, 46734), (558, 38945), (930, 23367), (1395, 15578), (2790, 7789)]