21645740

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{29251}}^1$

素因数の和:29297

約数の個数: 24

約数和(自身を含む): 46686192

約数和(自身を除く): 25040452

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 29251, 58502, 117004, 146255, 292510, 585020, 1082287, 2164574, 4329148, 5411435, 10822870, 21645740]

約数ペア:

[(1, 21645740), (2, 10822870), (4, 5411435), (5, 4329148), (10, 2164574), (20, 1082287), (37, 585020), (74, 292510), (148, 146255), (185, 117004), (370, 58502), (740, 29251)]