20175987

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{227}}^1$

素因数の和:339

約数の個数: 32

約数和(自身を含む): 30336768

約数和(自身を除く): 10160781

約数列:

[1, 3, 13, 39, 43, 53, 129, 159, 227, 559, 681, 689, 1677, 2067, 2279, 2951, 6837, 8853, 9761, 12031, 29283, 29627, 36093, 88881, 126893, 156403, 380679, 469209, 517333, 1551999, 6725329, 20175987]

約数ペア:

[(1, 20175987), (3, 6725329), (13, 1551999), (39, 517333), (43, 469209), (53, 380679), (129, 156403), (159, 126893), (227, 88881), (559, 36093), (681, 29627), (689, 29283), (1677, 12031), (2067, 9761), (2279, 8853), (2951, 6837)]