16686990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5981}}^1$

素因数の和:6025

約数の個数: 48

約数和(自身を含む): 44793216

約数和(自身を除く): 28106226

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 5981, 11962, 17943, 29905, 35886, 53829, 59810, 89715, 107658, 179430, 185411, 269145, 370822, 538290, 556233, 927055, 1112466, 1668699, 1854110, 2781165, 3337398, 5562330, 8343495, 16686990]

約数ペア:

[(1, 16686990), (2, 8343495), (3, 5562330), (5, 3337398), (6, 2781165), (9, 1854110), (10, 1668699), (15, 1112466), (18, 927055), (30, 556233), (31, 538290), (45, 370822), (62, 269145), (90, 185411), (93, 179430), (155, 107658), (186, 89715), (279, 59810), (310, 53829), (465, 35886), (558, 29905), (930, 17943), (1395, 11962), (2790, 5981)]