18644499

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:209

約数の個数: 40

約数和(自身を含む): 29324592

約数和(自身を除く): 10680093

約数列:

[1, 3, 9, 27, 43, 53, 81, 101, 129, 159, 303, 387, 477, 909, 1161, 1431, 2279, 2727, 3483, 4293, 4343, 5353, 6837, 8181, 13029, 16059, 20511, 39087, 48177, 61533, 117261, 144531, 184599, 230179, 351783, 433593, 690537, 2071611, 6214833, 18644499]

約数ペア:

[(1, 18644499), (3, 6214833), (9, 2071611), (27, 690537), (43, 433593), (53, 351783), (81, 230179), (101, 184599), (129, 144531), (159, 117261), (303, 61533), (387, 48177), (477, 39087), (909, 20511), (1161, 16059), (1431, 13029), (2279, 8181), (2727, 6837), (3483, 5353), (4293, 4343)]