21093875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1$

素因数の和:101

約数の個数: 48

約数和(自身を含む): 31056480

約数和(自身を除く): 9962605

約数列:

[1, 5, 11, 23, 25, 29, 55, 115, 125, 145, 253, 275, 319, 529, 575, 667, 725, 1265, 1375, 1595, 2645, 2875, 3335, 3625, 5819, 6325, 7337, 7975, 13225, 15341, 16675, 29095, 31625, 36685, 39875, 66125, 76705, 83375, 145475, 168751, 183425, 383525, 727375, 843755, 917125, 1917625, 4218775, 21093875]

約数ペア:

[(1, 21093875), (5, 4218775), (11, 1917625), (23, 917125), (25, 843755), (29, 727375), (55, 383525), (115, 183425), (125, 168751), (145, 145475), (253, 83375), (275, 76705), (319, 66125), (529, 39875), (575, 36685), (667, 31625), (725, 29095), (1265, 16675), (1375, 15341), (1595, 13225), (2645, 7975), (2875, 7337), (3335, 6325), (3625, 5819)]