21718472

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{19531}}^1$

素因数の和:19676

約数の個数: 16

約数和(自身を含む): 41017200

約数和(自身を除く): 19298728

約数列:

[1, 2, 4, 8, 139, 278, 556, 1112, 19531, 39062, 78124, 156248, 2714809, 5429618, 10859236, 21718472]

約数ペア:

[(1, 21718472), (2, 10859236), (4, 5429618), (8, 2714809), (139, 156248), (278, 78124), (556, 39062), (1112, 19531)]