20156858631

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{665177}}^1$

素因数の和:665240

約数の個数: 48

約数和(自身を含む): 36802968384

約数和(自身を除く): 16646109753

約数列:

[1, 3, 7, 9, 13, 21, 37, 39, 63, 91, 111, 117, 259, 273, 333, 481, 777, 819, 1443, 2331, 3367, 4329, 10101, 30303, 665177, 1995531, 4656239, 5986593, 8647301, 13968717, 24611549, 25941903, 41906151, 60531107, 73834647, 77825709, 172280843, 181593321, 221503941, 319950137, 516842529, 544779963, 959850411, 1550527587, 2239650959, 2879551233, 6718952877, 20156858631]

約数ペア:

[(1, 20156858631), (3, 6718952877), (7, 2879551233), (9, 2239650959), (13, 1550527587), (21, 959850411), (37, 544779963), (39, 516842529), (63, 319950137), (91, 221503941), (111, 181593321), (117, 172280843), (259, 77825709), (273, 73834647), (333, 60531107), (481, 41906151), (777, 25941903), (819, 24611549), (1443, 13968717), (2331, 8647301), (3367, 5986593), (4329, 4656239), (10101, 1995531), (30303, 665177)]