21804628

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{379}}^1\times {\mathrm{757}}^1$

素因数の和:1159

約数の個数: 24

約数和(自身を含む): 40325600

約数和(自身を除く): 18520972

約数列:

[1, 2, 4, 19, 38, 76, 379, 757, 758, 1514, 1516, 3028, 7201, 14383, 14402, 28766, 28804, 57532, 286903, 573806, 1147612, 5451157, 10902314, 21804628]

約数ペア:

[(1, 21804628), (2, 10902314), (4, 5451157), (19, 1147612), (38, 573806), (76, 286903), (379, 57532), (757, 28804), (758, 28766), (1514, 14402), (1516, 14383), (3028, 7201)]