397457428

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{121621}}^1$

素因数の和:121687

約数の個数: 24

約数和(自身を含む): 749191520

約数和(自身を除く): 351734092

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 817, 1634, 3268, 121621, 243242, 486484, 2310799, 4621598, 5229703, 9243196, 10459406, 20918812, 99364357, 198728714, 397457428]

約数ペア:

[(1, 397457428), (2, 198728714), (4, 99364357), (19, 20918812), (38, 10459406), (43, 9243196), (76, 5229703), (86, 4621598), (172, 2310799), (817, 486484), (1634, 243242), (3268, 121621)]