18776979

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{167}}^1$

素因数の和:248

約数の個数: 36

約数和(自身を含む): 30361968

約数和(自身を除く): 11584989

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 167, 279, 403, 501, 961, 1209, 1503, 2171, 2883, 3627, 5177, 6513, 8649, 12493, 15531, 19539, 37479, 46593, 67301, 112437, 160487, 201903, 481461, 605709, 1444383, 2086331, 6258993, 18776979]

約数ペア:

[(1, 18776979), (3, 6258993), (9, 2086331), (13, 1444383), (31, 605709), (39, 481461), (93, 201903), (117, 160487), (167, 112437), (279, 67301), (403, 46593), (501, 37479), (961, 19539), (1209, 15531), (1503, 12493), (2171, 8649), (2883, 6513), (3627, 5177)]