21613570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{563}}^1$

素因数の和:930

約数の個数: 32

約数和(自身を含む): 42638400

約数和(自身を除く): 21024830

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 349, 563, 698, 1126, 1745, 2815, 3490, 3839, 5630, 6193, 7678, 12386, 19195, 30965, 38390, 61930, 196487, 392974, 982435, 1964870, 2161357, 4322714, 10806785, 21613570]

約数ペア:

[(1, 21613570), (2, 10806785), (5, 4322714), (10, 2161357), (11, 1964870), (22, 982435), (55, 392974), (110, 196487), (349, 61930), (563, 38390), (698, 30965), (1126, 19195), (1745, 12386), (2815, 7678), (3490, 6193), (3839, 5630)]