201909915

素因数分解:

$3^5\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1213}}^1$

素因数の和:1370

約数の個数: 48

約数和(自身を含む): 365889888

約数和(自身を除く): 163979973

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 137, 243, 405, 411, 685, 1213, 1215, 1233, 2055, 3639, 3699, 6065, 6165, 10917, 11097, 18195, 18495, 32751, 33291, 54585, 55485, 98253, 163755, 166181, 166455, 294759, 491265, 498543, 830905, 1473795, 1495629, 2492715, 4486887, 7478145, 13460661, 22434435, 40381983, 67303305, 201909915]

約数ペア:

[(1, 201909915), (3, 67303305), (5, 40381983), (9, 22434435), (15, 13460661), (27, 7478145), (45, 4486887), (81, 2492715), (135, 1495629), (137, 1473795), (243, 830905), (405, 498543), (411, 491265), (685, 294759), (1213, 166455), (1215, 166181), (1233, 163755), (2055, 98253), (3639, 55485), (3699, 54585), (6065, 33291), (6165, 32751), (10917, 18495), (11097, 18195)]