21377744

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{12487}}^1$

素因数の和:12602

約数の個数: 20

約数和(自身を含む): 41809824

約数和(自身を除く): 20432080

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 12487, 24974, 49948, 99896, 199792, 1336109, 2672218, 5344436, 10688872, 21377744]

約数ペア:

[(1, 21377744), (2, 10688872), (4, 5344436), (8, 2672218), (16, 1336109), (107, 199792), (214, 99896), (428, 49948), (856, 24974), (1712, 12487)]