7901439

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{281}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 13138944

約数和(自身を除く): 5237505

約数列:

[1, 3, 7, 13, 21, 39, 91, 103, 273, 281, 309, 721, 843, 1339, 1967, 2163, 3653, 4017, 5901, 9373, 10959, 25571, 28119, 28943, 76713, 86829, 202601, 376259, 607803, 1128777, 2633813, 7901439]

約数ペア:

[(1, 7901439), (3, 2633813), (7, 1128777), (13, 607803), (21, 376259), (39, 202601), (91, 86829), (103, 76713), (273, 28943), (281, 28119), (309, 25571), (721, 10959), (843, 9373), (1339, 5901), (1967, 4017), (2163, 3653)]