21858268

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{1307}}^1$

素因数の和:1461

約数の個数: 24

約数和(自身を含む): 39663792

約数和(自身を除く): 17805524

約数列:

[1, 2, 4, 37, 74, 113, 148, 226, 452, 1307, 2614, 4181, 5228, 8362, 16724, 48359, 96718, 147691, 193436, 295382, 590764, 5464567, 10929134, 21858268]

約数ペア:

[(1, 21858268), (2, 10929134), (4, 5464567), (37, 590764), (74, 295382), (113, 193436), (148, 147691), (226, 96718), (452, 48359), (1307, 16724), (2614, 8362), (4181, 5228)]