18840033

素因数分解:

$3^5\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:148

約数の個数: 48

約数和(自身を含む): 30331392

約数和(自身を除く): 11491359

約数列:

[1, 3, 9, 27, 31, 41, 61, 81, 93, 123, 183, 243, 279, 369, 549, 837, 1107, 1271, 1647, 1891, 2501, 2511, 3321, 3813, 4941, 5673, 7503, 7533, 9963, 11439, 14823, 17019, 22509, 34317, 51057, 67527, 77531, 102951, 153171, 202581, 232593, 308853, 459513, 607743, 697779, 2093337, 6280011, 18840033]

約数ペア:

[(1, 18840033), (3, 6280011), (9, 2093337), (27, 697779), (31, 607743), (41, 459513), (61, 308853), (81, 232593), (93, 202581), (123, 153171), (183, 102951), (243, 77531), (279, 67527), (369, 51057), (549, 34317), (837, 22509), (1107, 17019), (1271, 14823), (1647, 11439), (1891, 9963), (2501, 7533), (2511, 7503), (3321, 5673), (3813, 4941)]