21322575

素因数分解:

$3^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1019}}^1$

素因数の和:1069

約数の個数: 48

約数和(自身を含む): 40473600

約数和(自身を除く): 19151025

約数列:

[1, 3, 5, 9, 15, 25, 27, 31, 45, 75, 93, 135, 155, 225, 279, 465, 675, 775, 837, 1019, 1395, 2325, 3057, 4185, 5095, 6975, 9171, 15285, 20925, 25475, 27513, 31589, 45855, 76425, 94767, 137565, 157945, 229275, 284301, 473835, 687825, 789725, 852903, 1421505, 2369175, 4264515, 7107525, 21322575]

約数ペア:

[(1, 21322575), (3, 7107525), (5, 4264515), (9, 2369175), (15, 1421505), (25, 852903), (27, 789725), (31, 687825), (45, 473835), (75, 284301), (93, 229275), (135, 157945), (155, 137565), (225, 94767), (279, 76425), (465, 45855), (675, 31589), (775, 27513), (837, 25475), (1019, 20925), (1395, 15285), (2325, 9171), (3057, 6975), (4185, 5095)]