21161249938

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{719}}^1\times {\mathrm{397723}}^1$

素因数の和:398481

約数の個数: 16

約数和(自身を含む): 32645185920

約数和(自身を除く): 11483935982

約数列:

[1, 2, 37, 74, 719, 1438, 26603, 53206, 397723, 795446, 14715751, 29431502, 285962837, 571925674, 10580624969, 21161249938]

約数ペア:

[(1, 21161249938), (2, 10580624969), (37, 571925674), (74, 285962837), (719, 29431502), (1438, 14715751), (26603, 795446), (53206, 397723)]