21364425

素因数分解:

$3^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1021}}^1$

素因数の和:1071

約数の個数: 48

約数和(自身を含む): 40552960

約数和(自身を除く): 19188535

約数列:

[1, 3, 5, 9, 15, 25, 27, 31, 45, 75, 93, 135, 155, 225, 279, 465, 675, 775, 837, 1021, 1395, 2325, 3063, 4185, 5105, 6975, 9189, 15315, 20925, 25525, 27567, 31651, 45945, 76575, 94953, 137835, 158255, 229725, 284859, 474765, 689175, 791275, 854577, 1424295, 2373825, 4272885, 7121475, 21364425]

約数ペア:

[(1, 21364425), (3, 7121475), (5, 4272885), (9, 2373825), (15, 1424295), (25, 854577), (27, 791275), (31, 689175), (45, 474765), (75, 284859), (93, 229725), (135, 158255), (155, 137835), (225, 94953), (279, 76575), (465, 45945), (675, 31651), (775, 27567), (837, 25525), (1021, 20925), (1395, 15315), (2325, 9189), (3063, 6975), (4185, 5105)]