31381155

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17881}}^1$

素因数の和:17908

約数の個数: 32

約数和(自身を含む): 60083520

約数和(自身を除く): 28702365

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 17881, 53643, 89405, 160929, 232453, 268215, 482787, 697359, 804645, 1162265, 2092077, 2413935, 3486795, 6276231, 10460385, 31381155]

約数ペア:

[(1, 31381155), (3, 10460385), (5, 6276231), (9, 3486795), (13, 2413935), (15, 2092077), (27, 1162265), (39, 804645), (45, 697359), (65, 482787), (117, 268215), (135, 232453), (195, 160929), (351, 89405), (585, 53643), (1755, 17881)]