21681930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{701}}^1\times {\mathrm{1031}}^1$

素因数の和:1742

約数の個数: 32

約数和(自身を含む): 52161408

約数和(自身を除く): 30479478

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 701, 1031, 1402, 2062, 2103, 3093, 3505, 4206, 5155, 6186, 7010, 10310, 10515, 15465, 21030, 30930, 722731, 1445462, 2168193, 3613655, 4336386, 7227310, 10840965, 21681930]

約数ペア:

[(1, 21681930), (2, 10840965), (3, 7227310), (5, 4336386), (6, 3613655), (10, 2168193), (15, 1445462), (30, 722731), (701, 30930), (1031, 21030), (1402, 15465), (2062, 10515), (2103, 10310), (3093, 7010), (3505, 6186), (4206, 5155)]