21000307075

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{2857}}^1\times {\mathrm{26729}}^1$

素因数の和:29607

約数の個数: 24

約数和(自身を含む): 28418694480

約数和(自身を除く): 7418387405

約数列:

[1, 5, 11, 25, 55, 275, 2857, 14285, 26729, 31427, 71425, 133645, 157135, 294019, 668225, 785675, 1470095, 7350475, 76364753, 381823765, 840012283, 1909118825, 4200061415, 21000307075]

約数ペア:

[(1, 21000307075), (5, 4200061415), (11, 1909118825), (25, 840012283), (55, 381823765), (275, 76364753), (2857, 7350475), (14285, 1470095), (26729, 785675), (31427, 668225), (71425, 294019), (133645, 157135)]