21195075

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1117}}^1$

素因数の和:1164

約数の個数: 48

約数和(自身を含む): 39926016

約数和(自身を除く): 18730941

約数列:

[1, 3, 5, 11, 15, 23, 25, 33, 55, 69, 75, 115, 165, 253, 275, 345, 575, 759, 825, 1117, 1265, 1725, 3351, 3795, 5585, 6325, 12287, 16755, 18975, 25691, 27925, 36861, 61435, 77073, 83775, 128455, 184305, 282601, 307175, 385365, 642275, 847803, 921525, 1413005, 1926825, 4239015, 7065025, 21195075]

約数ペア:

[(1, 21195075), (3, 7065025), (5, 4239015), (11, 1926825), (15, 1413005), (23, 921525), (25, 847803), (33, 642275), (55, 385365), (69, 307175), (75, 282601), (115, 184305), (165, 128455), (253, 83775), (275, 77073), (345, 61435), (575, 36861), (759, 27925), (825, 25691), (1117, 18975), (1265, 16755), (1725, 12287), (3351, 6325), (3795, 5585)]