39989721

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{5443}}^1$

素因数の和:5556

約数の個数: 16

約数和(自身を含む): 55746560

約数和(自身を除く): 15756839

約数列:

[1, 3, 31, 79, 93, 237, 2449, 5443, 7347, 16329, 168733, 429997, 506199, 1289991, 13329907, 39989721]

約数ペア:

[(1, 39989721), (3, 13329907), (31, 1289991), (79, 506199), (93, 429997), (237, 168733), (2449, 16329), (5443, 7347)]