21871450

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:327

約数の個数: 48

約数和(自身を含む): 42747264

約数和(自身を除く): 20875814

約数列:

[1, 2, 5, 10, 25, 41, 47, 50, 82, 94, 205, 227, 235, 410, 454, 470, 1025, 1135, 1175, 1927, 2050, 2270, 2350, 3854, 5675, 9307, 9635, 10669, 11350, 18614, 19270, 21338, 46535, 48175, 53345, 93070, 96350, 106690, 232675, 266725, 437429, 465350, 533450, 874858, 2187145, 4374290, 10935725, 21871450]

約数ペア:

[(1, 21871450), (2, 10935725), (5, 4374290), (10, 2187145), (25, 874858), (41, 533450), (47, 465350), (50, 437429), (82, 266725), (94, 232675), (205, 106690), (227, 96350), (235, 93070), (410, 53345), (454, 48175), (470, 46535), (1025, 21338), (1135, 19270), (1175, 18614), (1927, 11350), (2050, 10669), (2270, 9635), (2350, 9307), (3854, 5675)]