21246200

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{2591}}^1$

素因数の和:2648

約数の個数: 48

約数和(自身を含む): 50621760

約数和(自身を除く): 29375560

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 410, 820, 1025, 1640, 2050, 2591, 4100, 5182, 8200, 10364, 12955, 20728, 25910, 51820, 64775, 103640, 106231, 129550, 212462, 259100, 424924, 518200, 531155, 849848, 1062310, 2124620, 2655775, 4249240, 5311550, 10623100, 21246200]

約数ペア:

[(1, 21246200), (2, 10623100), (4, 5311550), (5, 4249240), (8, 2655775), (10, 2124620), (20, 1062310), (25, 849848), (40, 531155), (41, 518200), (50, 424924), (82, 259100), (100, 212462), (164, 129550), (200, 106231), (205, 103640), (328, 64775), (410, 51820), (820, 25910), (1025, 20728), (1640, 12955), (2050, 10364), (2591, 8200), (4100, 5182)]