21566804

素因数分解:

$2^2\times 7^1\times {\mathrm{349}}^1\times {\mathrm{2207}}^1$

素因数の和:2567

約数の個数: 24

約数和(自身を含む): 43276800

約数和(自身を除く): 21709996

約数列:

[1, 2, 4, 7, 14, 28, 349, 698, 1396, 2207, 2443, 4414, 4886, 8828, 9772, 15449, 30898, 61796, 770243, 1540486, 3080972, 5391701, 10783402, 21566804]

約数ペア:

[(1, 21566804), (2, 10783402), (4, 5391701), (7, 3080972), (14, 1540486), (28, 770243), (349, 61796), (698, 30898), (1396, 15449), (2207, 9772), (2443, 8828), (4414, 4886)]