18777111

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 27709440

約数和(自身を除く): 8932329

約数列:

[1, 3, 19, 43, 47, 57, 129, 141, 163, 489, 817, 893, 2021, 2451, 2679, 3097, 6063, 7009, 7661, 9291, 21027, 22983, 38399, 115197, 133171, 145559, 329423, 399513, 436677, 988269, 6259037, 18777111]

約数ペア:

[(1, 18777111), (3, 6259037), (19, 988269), (43, 436677), (47, 399513), (57, 329423), (129, 145559), (141, 133171), (163, 115197), (489, 38399), (817, 22983), (893, 21027), (2021, 9291), (2451, 7661), (2679, 7009), (3097, 6063)]