21220410

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{2137}}^1$

素因数の和:2478

約数の個数: 32

約数和(自身を含む): 51106752

約数和(自身を除く): 29886342

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 331, 662, 993, 1655, 1986, 2137, 3310, 4274, 4965, 6411, 9930, 10685, 12822, 21370, 32055, 64110, 707347, 1414694, 2122041, 3536735, 4244082, 7073470, 10610205, 21220410]

約数ペア:

[(1, 21220410), (2, 10610205), (3, 7073470), (5, 4244082), (6, 3536735), (10, 2122041), (15, 1414694), (30, 707347), (331, 64110), (662, 32055), (993, 21370), (1655, 12822), (1986, 10685), (2137, 9930), (3310, 6411), (4274, 4965)]