397904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1913}}^1$

素因数の和:1934

約数の個数: 20

約数和(自身を含む): 830676

約数和(自身を除く): 432772

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1913, 3826, 7652, 15304, 24869, 30608, 49738, 99476, 198952, 397904]

約数ペア:

[(1, 397904), (2, 198952), (4, 99476), (8, 49738), (13, 30608), (16, 24869), (26, 15304), (52, 7652), (104, 3826), (208, 1913)]