20154779715

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{27421469}}^1$

素因数の和:27421491

約数の個数: 24

約数和(自身を含む): 37512570960

約数和(自身を除く): 17357791245

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 27421469, 82264407, 137107345, 191950283, 411322035, 575850849, 959751415, 1343651981, 2879254245, 4030955943, 6718259905, 20154779715]

約数ペア:

[(1, 20154779715), (3, 6718259905), (5, 4030955943), (7, 2879254245), (15, 1343651981), (21, 959751415), (35, 575850849), (49, 411322035), (105, 191950283), (147, 137107345), (245, 82264407), (735, 27421469)]