397946

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:277

約数の個数: 16

約数和(自身を含む): 641088

約数和(自身を除く): 243142

約数列:

[1, 2, 23, 41, 46, 82, 211, 422, 943, 1886, 4853, 8651, 9706, 17302, 198973, 397946]

約数ペア:

[(1, 397946), (2, 198973), (23, 17302), (41, 9706), (46, 8651), (82, 4853), (211, 1886), (422, 943)]