21292875

素因数分解:

$3^5\times 5^3\times {\mathrm{701}}^1$

素因数の和:731

約数の個数: 48

約数和(自身を含む): 39862368

約数和(自身を除く): 18569493

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 125, 135, 225, 243, 375, 405, 675, 701, 1125, 1215, 2025, 2103, 3375, 3505, 6075, 6309, 10125, 10515, 17525, 18927, 30375, 31545, 52575, 56781, 87625, 94635, 157725, 170343, 262875, 283905, 473175, 788625, 851715, 1419525, 2365875, 4258575, 7097625, 21292875]

約数ペア:

[(1, 21292875), (3, 7097625), (5, 4258575), (9, 2365875), (15, 1419525), (25, 851715), (27, 788625), (45, 473175), (75, 283905), (81, 262875), (125, 170343), (135, 157725), (225, 94635), (243, 87625), (375, 56781), (405, 52575), (675, 31545), (701, 30375), (1125, 18927), (1215, 17525), (2025, 10515), (2103, 10125), (3375, 6309), (3505, 6075)]