20418524

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{19709}}^1$

素因数の和:19757

約数の個数: 24

約数和(自身を含む): 41942880

約数和(自身を除く): 21524356

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 19709, 39418, 78836, 137963, 275926, 551852, 729233, 1458466, 2916932, 5104631, 10209262, 20418524]

約数ペア:

[(1, 20418524), (2, 10209262), (4, 5104631), (7, 2916932), (14, 1458466), (28, 729233), (37, 551852), (74, 275926), (148, 137963), (259, 78836), (518, 39418), (1036, 19709)]