21152780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{96149}}^1$

素因数の和:96169

約数の個数: 24

約数和(自身を含む): 48459600

約数和(自身を除く): 27306820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 96149, 192298, 384596, 480745, 961490, 1057639, 1922980, 2115278, 4230556, 5288195, 10576390, 21152780]

約数ペア:

[(1, 21152780), (2, 10576390), (4, 5288195), (5, 4230556), (10, 2115278), (11, 1922980), (20, 1057639), (22, 961490), (44, 480745), (55, 384596), (110, 192298), (220, 96149)]