21183856

素因数分解:

$2^4\times {\mathrm{1013}}^1\times {\mathrm{1307}}^1$

素因数の和:2328

約数の個数: 20

約数和(自身を含む): 41115672

約数和(自身を除く): 19931816

約数列:

[1, 2, 4, 8, 16, 1013, 1307, 2026, 2614, 4052, 5228, 8104, 10456, 16208, 20912, 1323991, 2647982, 5295964, 10591928, 21183856]

約数ペア:

[(1, 21183856), (2, 10591928), (4, 5295964), (8, 2647982), (16, 1323991), (1013, 20912), (1307, 16208), (2026, 10456), (2614, 8104), (4052, 5228)]