31188915

素因数分解:

$3^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{2243}}^1$

素因数の和:2360

約数の個数: 32

約数和(自身を含む): 56010240

約数和(自身を除く): 24821325

約数列:

[1, 3, 5, 9, 15, 27, 45, 103, 135, 309, 515, 927, 1545, 2243, 2781, 4635, 6729, 11215, 13905, 20187, 33645, 60561, 100935, 231029, 302805, 693087, 1155145, 2079261, 3465435, 6237783, 10396305, 31188915]

約数ペア:

[(1, 31188915), (3, 10396305), (5, 6237783), (9, 3465435), (15, 2079261), (27, 1155145), (45, 693087), (103, 302805), (135, 231029), (309, 100935), (515, 60561), (927, 33645), (1545, 20187), (2243, 13905), (2781, 11215), (4635, 6729)]