21490230

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{653}}^1\times {\mathrm{1097}}^1$

素因数の和:1760

約数の個数: 32

約数和(自身を含む): 51702624

約数和(自身を除く): 30212394

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 653, 1097, 1306, 1959, 2194, 3265, 3291, 3918, 5485, 6530, 6582, 9795, 10970, 16455, 19590, 32910, 716341, 1432682, 2149023, 3581705, 4298046, 7163410, 10745115, 21490230]

約数ペア:

[(1, 21490230), (2, 10745115), (3, 7163410), (5, 4298046), (6, 3581705), (10, 2149023), (15, 1432682), (30, 716341), (653, 32910), (1097, 19590), (1306, 16455), (1959, 10970), (2194, 9795), (3265, 6582), (3291, 6530), (3918, 5485)]