21671013

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{487}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 35854336

約数和(自身を除く): 14183323

約数列:

[1, 3, 7, 13, 21, 39, 91, 163, 273, 487, 489, 1141, 1461, 2119, 3409, 3423, 6331, 6357, 10227, 14833, 18993, 44317, 44499, 79381, 132951, 238143, 555667, 1031953, 1667001, 3095859, 7223671, 21671013]

約数ペア:

[(1, 21671013), (3, 7223671), (7, 3095859), (13, 1667001), (21, 1031953), (39, 555667), (91, 238143), (163, 132951), (273, 79381), (487, 44499), (489, 44317), (1141, 18993), (1461, 14833), (2119, 10227), (3409, 6357), (3423, 6331)]