20121258

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{317}}^1$

素因数の和:542

約数の個数: 32

約数和(自身を含む): 41212800

約数和(自身を除く): 21091542

約数列:

[1, 2, 3, 6, 71, 142, 149, 213, 298, 317, 426, 447, 634, 894, 951, 1902, 10579, 21158, 22507, 31737, 45014, 47233, 63474, 67521, 94466, 135042, 141699, 283398, 3353543, 6707086, 10060629, 20121258]

約数ペア:

[(1, 20121258), (2, 10060629), (3, 6707086), (6, 3353543), (71, 283398), (142, 141699), (149, 135042), (213, 94466), (298, 67521), (317, 63474), (426, 47233), (447, 45014), (634, 31737), (894, 22507), (951, 21158), (1902, 10579)]