31985811

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{857}}^1$

素因数の和:916

約数の個数: 48

約数和(自身を含む): 56216160

約数和(自身を除く): 24230349

約数列:

[1, 3, 9, 11, 13, 29, 33, 39, 87, 99, 117, 143, 261, 319, 377, 429, 857, 957, 1131, 1287, 2571, 2871, 3393, 4147, 7713, 9427, 11141, 12441, 24853, 28281, 33423, 37323, 74559, 84843, 100269, 122551, 223677, 273383, 323089, 367653, 820149, 969267, 1102959, 2460447, 2907801, 3553979, 10661937, 31985811]

約数ペア:

[(1, 31985811), (3, 10661937), (9, 3553979), (11, 2907801), (13, 2460447), (29, 1102959), (33, 969267), (39, 820149), (87, 367653), (99, 323089), (117, 273383), (143, 223677), (261, 122551), (319, 100269), (377, 84843), (429, 74559), (857, 37323), (957, 33423), (1131, 28281), (1287, 24853), (2571, 12441), (2871, 11141), (3393, 9427), (4147, 7713)]