287788389

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{4231}}^1$

素因数の和:4361

約数の個数: 32

約数和(自身を含む): 455024640

約数和(自身を除く): 167236251

約数列:

[1, 3, 7, 21, 41, 79, 123, 237, 287, 553, 861, 1659, 3239, 4231, 9717, 12693, 22673, 29617, 68019, 88851, 173471, 334249, 520413, 1002747, 1214297, 2339743, 3642891, 7019229, 13704209, 41112627, 95929463, 287788389]

約数ペア:

[(1, 287788389), (3, 95929463), (7, 41112627), (21, 13704209), (41, 7019229), (79, 3642891), (123, 2339743), (237, 1214297), (287, 1002747), (553, 520413), (861, 334249), (1659, 173471), (3239, 88851), (4231, 68019), (9717, 29617), (12693, 22673)]