31307985

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7481}}^1$

素因数の和:7526

約数の個数: 32

約数和(自身を含む): 57461760

約数和(自身を除く): 26153775

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 93, 135, 155, 279, 465, 837, 1395, 4185, 7481, 22443, 37405, 67329, 112215, 201987, 231911, 336645, 695733, 1009935, 1159555, 2087199, 3478665, 6261597, 10435995, 31307985]

約数ペア:

[(1, 31307985), (3, 10435995), (5, 6261597), (9, 3478665), (15, 2087199), (27, 1159555), (31, 1009935), (45, 695733), (93, 336645), (135, 231911), (155, 201987), (279, 112215), (465, 67329), (837, 37405), (1395, 22443), (4185, 7481)]