21791372

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{1303}}^1$

素因数の和:1457

約数の個数: 24

約数和(自身を含む): 39542496

約数和(自身を除く): 17751124

約数列:

[1, 2, 4, 37, 74, 113, 148, 226, 452, 1303, 2606, 4181, 5212, 8362, 16724, 48211, 96422, 147239, 192844, 294478, 588956, 5447843, 10895686, 21791372]

約数ペア:

[(1, 21791372), (2, 10895686), (4, 5447843), (37, 588956), (74, 294478), (113, 192844), (148, 147239), (226, 96422), (452, 48211), (1303, 16724), (2606, 8362), (4181, 5212)]