81618771

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{449}}^1$

素因数の和:603

約数の個数: 32

約数和(自身を含む): 120960000

約数和(自身を除く): 39341229

約数列:

[1, 3, 13, 39, 59, 79, 177, 237, 449, 767, 1027, 1347, 2301, 3081, 4661, 5837, 13983, 17511, 26491, 35471, 60593, 79473, 106413, 181779, 344383, 461123, 1033149, 1383369, 2092789, 6278367, 27206257, 81618771]

約数ペア:

[(1, 81618771), (3, 27206257), (13, 6278367), (39, 2092789), (59, 1383369), (79, 1033149), (177, 461123), (237, 344383), (449, 181779), (767, 106413), (1027, 79473), (1347, 60593), (2301, 35471), (3081, 26491), (4661, 17511), (5837, 13983)]