21282625

素因数分解:

$5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1871}}^1$

素因数の和:1906

約数の個数: 32

約数和(自身を含む): 32707584

約数和(自身を除く): 11424959

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 125, 175, 325, 455, 875, 1625, 1871, 2275, 9355, 11375, 13097, 24323, 46775, 65485, 121615, 170261, 233875, 327425, 608075, 851305, 1637125, 3040375, 4256525, 21282625]

約数ペア:

[(1, 21282625), (5, 4256525), (7, 3040375), (13, 1637125), (25, 851305), (35, 608075), (65, 327425), (91, 233875), (125, 170261), (175, 121615), (325, 65485), (455, 46775), (875, 24323), (1625, 13097), (1871, 11375), (2275, 9355)]