20507427

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{479}}^1$

素因数の和:623

約数の個数: 24

約数和(自身を含む): 30551040

約数和(自身を除く): 10043613

約数列:

[1, 3, 9, 67, 71, 201, 213, 479, 603, 639, 1437, 4311, 4757, 14271, 32093, 34009, 42813, 96279, 102027, 288837, 306081, 2278603, 6835809, 20507427]

約数ペア:

[(1, 20507427), (3, 6835809), (9, 2278603), (67, 306081), (71, 288837), (201, 102027), (213, 96279), (479, 42813), (603, 34009), (639, 32093), (1437, 14271), (4311, 4757)]