18709938

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2161}}^1$

素因数の和:2219

約数の個数: 48

約数和(自身を含む): 44857176

約数和(自身を除く): 26147238

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 37, 39, 74, 78, 111, 117, 222, 234, 333, 481, 666, 962, 1443, 2161, 2886, 4322, 4329, 6483, 8658, 12966, 19449, 28093, 38898, 56186, 79957, 84279, 159914, 168558, 239871, 252837, 479742, 505674, 719613, 1039441, 1439226, 2078882, 3118323, 6236646, 9354969, 18709938]

約数ペア:

[(1, 18709938), (2, 9354969), (3, 6236646), (6, 3118323), (9, 2078882), (13, 1439226), (18, 1039441), (26, 719613), (37, 505674), (39, 479742), (74, 252837), (78, 239871), (111, 168558), (117, 159914), (222, 84279), (234, 79957), (333, 56186), (481, 38898), (666, 28093), (962, 19449), (1443, 12966), (2161, 8658), (2886, 6483), (4322, 4329)]