21757924

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{1301}}^1$

素因数の和:1455

約数の個数: 24

約数和(自身を含む): 39481848

約数和(自身を除く): 17723924

約数列:

[1, 2, 4, 37, 74, 113, 148, 226, 452, 1301, 2602, 4181, 5204, 8362, 16724, 48137, 96274, 147013, 192548, 294026, 588052, 5439481, 10878962, 21757924]

約数ペア:

[(1, 21757924), (2, 10878962), (4, 5439481), (37, 588052), (74, 294026), (113, 192548), (148, 147013), (226, 96274), (452, 48137), (1301, 16724), (2602, 8362), (4181, 5204)]