20413988

素因数分解:

$2^2\times 7^3\times {\mathrm{14879}}^1$

素因数の和:14904

約数の個数: 24

約数和(自身を含む): 41664000

約数和(自身を除く): 21250012

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 14879, 29758, 59516, 104153, 208306, 416612, 729071, 1458142, 2916284, 5103497, 10206994, 20413988]

約数ペア:

[(1, 20413988), (2, 10206994), (4, 5103497), (7, 2916284), (14, 1458142), (28, 729071), (49, 416612), (98, 208306), (196, 104153), (343, 59516), (686, 29758), (1372, 14879)]