21161224

素因数分解:

$2^3\times 7^1\times {\mathrm{443}}^1\times {\mathrm{853}}^1$

素因数の和:1309

約数の個数: 32

約数和(自身を含む): 45501120

約数和(自身を除く): 24339896

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 443, 853, 886, 1706, 1772, 3101, 3412, 3544, 5971, 6202, 6824, 11942, 12404, 23884, 24808, 47768, 377879, 755758, 1511516, 2645153, 3023032, 5290306, 10580612, 21161224]

約数ペア:

[(1, 21161224), (2, 10580612), (4, 5290306), (7, 3023032), (8, 2645153), (14, 1511516), (28, 755758), (56, 377879), (443, 47768), (853, 24808), (886, 23884), (1706, 12404), (1772, 11942), (3101, 6824), (3412, 6202), (3544, 5971)]