20693151

素因数分解:

$3^5\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 33266688

約数和(自身を除く): 12573537

約数列:

[1, 3, 9, 27, 31, 41, 67, 81, 93, 123, 201, 243, 279, 369, 603, 837, 1107, 1271, 1809, 2077, 2511, 2747, 3321, 3813, 5427, 6231, 7533, 8241, 9963, 11439, 16281, 18693, 24723, 34317, 56079, 74169, 85157, 102951, 168237, 222507, 255471, 308853, 504711, 667521, 766413, 2299239, 6897717, 20693151]

約数ペア:

[(1, 20693151), (3, 6897717), (9, 2299239), (27, 766413), (31, 667521), (41, 504711), (67, 308853), (81, 255471), (93, 222507), (123, 168237), (201, 102951), (243, 85157), (279, 74169), (369, 56079), (603, 34317), (837, 24723), (1107, 18693), (1271, 16281), (1809, 11439), (2077, 9963), (2511, 8241), (2747, 7533), (3321, 6231), (3813, 5427)]