21761888

素因数分解:

$2^5\times {\mathrm{680059}}^1$

素因数の和:680069

約数の個数: 12

約数和(自身を含む): 42843780

約数和(自身を除く): 21081892

約数列:

[1, 2, 4, 8, 16, 32, 680059, 1360118, 2720236, 5440472, 10880944, 21761888]

約数ペア:

[(1, 21761888), (2, 10880944), (4, 5440472), (8, 2720236), (16, 1360118), (32, 680059)]