21145676

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{821}}^1$

素因数の和:1009

約数の個数: 24

約数和(自身を含む): 38114496

約数和(自身を除く): 16968820

約数列:

[1, 2, 4, 47, 94, 137, 188, 274, 548, 821, 1642, 3284, 6439, 12878, 25756, 38587, 77174, 112477, 154348, 224954, 449908, 5286419, 10572838, 21145676]

約数ペア:

[(1, 21145676), (2, 10572838), (4, 5286419), (47, 449908), (94, 224954), (137, 154348), (188, 112477), (274, 77174), (548, 38587), (821, 25756), (1642, 12878), (3284, 6439)]