639312303

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{6571}}^1$

素因数の和:6735

約数の個数: 32

約数和(自身を含む): 1006935552

約数和(自身を除く): 367623249

約数列:

[1, 3, 7, 21, 41, 113, 123, 287, 339, 791, 861, 2373, 4633, 6571, 13899, 19713, 32431, 45997, 97293, 137991, 269411, 742523, 808233, 1885877, 2227569, 5197661, 5657631, 15592983, 30443443, 91330329, 213104101, 639312303]

約数ペア:

[(1, 639312303), (3, 213104101), (7, 91330329), (21, 30443443), (41, 15592983), (113, 5657631), (123, 5197661), (287, 2227569), (339, 1885877), (791, 808233), (861, 742523), (2373, 269411), (4633, 137991), (6571, 97293), (13899, 45997), (19713, 32431)]