81919188

素因数分解:

$2^2\times 3^6\times {\mathrm{13}}^1\times {\mathrm{2161}}^1$

素因数の和:2196

約数の個数: 84

約数和(自身を含む): 231580468

約数和(自身を除く): 149661280

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 243, 324, 351, 468, 486, 702, 729, 972, 1053, 1404, 1458, 2106, 2161, 2916, 3159, 4212, 4322, 6318, 6483, 8644, 9477, 12636, 12966, 18954, 19449, 25932, 28093, 37908, 38898, 56186, 58347, 77796, 84279, 112372, 116694, 168558, 175041, 233388, 252837, 337116, 350082, 505674, 525123, 700164, 758511, 1011348, 1050246, 1517022, 1575369, 2100492, 2275533, 3034044, 3150738, 4551066, 6301476, 6826599, 9102132, 13653198, 20479797, 27306396, 40959594, 81919188]

約数ペア:

[(1, 81919188), (2, 40959594), (3, 27306396), (4, 20479797), (6, 13653198), (9, 9102132), (12, 6826599), (13, 6301476), (18, 4551066), (26, 3150738), (27, 3034044), (36, 2275533), (39, 2100492), (52, 1575369), (54, 1517022), (78, 1050246), (81, 1011348), (108, 758511), (117, 700164), (156, 525123), (162, 505674), (234, 350082), (243, 337116), (324, 252837), (351, 233388), (468, 175041), (486, 168558), (702, 116694), (729, 112372), (972, 84279), (1053, 77796), (1404, 58347), (1458, 56186), (2106, 38898), (2161, 37908), (2916, 28093), (3159, 25932), (4212, 19449), (4322, 18954), (6318, 12966), (6483, 12636), (8644, 9477)]