218974772

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{21031}}^1$

素因数の和:21191

約数の個数: 24

約数和(自身を含む): 406338240

約数和(自身を除く): 187363468

約数列:

[1, 2, 4, 19, 38, 76, 137, 274, 548, 2603, 5206, 10412, 21031, 42062, 84124, 399589, 799178, 1598356, 2881247, 5762494, 11524988, 54743693, 109487386, 218974772]

約数ペア:

[(1, 218974772), (2, 109487386), (4, 54743693), (19, 11524988), (38, 5762494), (76, 2881247), (137, 1598356), (274, 799178), (548, 399589), (2603, 84124), (5206, 42062), (10412, 21031)]