21871125

素因数分解:

$3^2\times 5^3\times {\mathrm{19441}}^1$

素因数の和:19462

約数の個数: 24

約数和(自身を含む): 39428376

約数和(自身を除く): 17557251

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 1125, 19441, 58323, 97205, 174969, 291615, 486025, 874845, 1458075, 2430125, 4374225, 7290375, 21871125]

約数ペア:

[(1, 21871125), (3, 7290375), (5, 4374225), (9, 2430125), (15, 1458075), (25, 874845), (45, 486025), (75, 291615), (125, 174969), (225, 97205), (375, 58323), (1125, 19441)]