21826340

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{4027}}^1$

素因数の和:4307

約数の個数: 24

約数和(自身を含む): 46015872

約数和(自身を除く): 24189532

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 4027, 5420, 8054, 16108, 20135, 40270, 80540, 1091317, 2182634, 4365268, 5456585, 10913170, 21826340]

約数ペア:

[(1, 21826340), (2, 10913170), (4, 5456585), (5, 4365268), (10, 2182634), (20, 1091317), (271, 80540), (542, 40270), (1084, 20135), (1355, 16108), (2710, 8054), (4027, 5420)]