31123911

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{659}}^1$

素因数の和:855

約数の個数: 32

約数和(自身を含む): 51448320

約数和(自身を除く): 20324409

約数列:

[1, 3, 7, 13, 21, 39, 91, 173, 273, 519, 659, 1211, 1977, 2249, 3633, 4613, 6747, 8567, 13839, 15743, 25701, 47229, 59969, 114007, 179907, 342021, 798049, 1482091, 2394147, 4446273, 10374637, 31123911]

約数ペア:

[(1, 31123911), (3, 10374637), (7, 4446273), (13, 2394147), (21, 1482091), (39, 798049), (91, 342021), (173, 179907), (273, 114007), (519, 59969), (659, 47229), (1211, 25701), (1977, 15743), (2249, 13839), (3633, 8567), (4613, 6747)]