21000604360

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^2\times {\mathrm{104149}}^1$

素因数の和:104302

約数の個数: 48

約数和(自身を含む): 47926705500

約数和(自身を除く): 26926101140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 5041, 10082, 20164, 25205, 40328, 50410, 100820, 104149, 201640, 208298, 416596, 520745, 833192, 1041490, 2082980, 4165960, 7394579, 14789158, 29578316, 36972895, 59156632, 73945790, 147891580, 295783160, 525015109, 1050030218, 2100060436, 2625075545, 4200120872, 5250151090, 10500302180, 21000604360]

約数ペア:

[(1, 21000604360), (2, 10500302180), (4, 5250151090), (5, 4200120872), (8, 2625075545), (10, 2100060436), (20, 1050030218), (40, 525015109), (71, 295783160), (142, 147891580), (284, 73945790), (355, 59156632), (568, 36972895), (710, 29578316), (1420, 14789158), (2840, 7394579), (5041, 4165960), (10082, 2082980), (20164, 1041490), (25205, 833192), (40328, 520745), (50410, 416596), (100820, 208298), (104149, 201640)]