21393375

素因数分解:

$3^1\times 5^3\times {\mathrm{89}}^1\times {\mathrm{641}}^1$

素因数の和:748

約数の個数: 32

約数和(自身を含む): 36054720

約数和(自身を除く): 14661345

約数列:

[1, 3, 5, 15, 25, 75, 89, 125, 267, 375, 445, 641, 1335, 1923, 2225, 3205, 6675, 9615, 11125, 16025, 33375, 48075, 57049, 80125, 171147, 240375, 285245, 855735, 1426225, 4278675, 7131125, 21393375]

約数ペア:

[(1, 21393375), (3, 7131125), (5, 4278675), (15, 1426225), (25, 855735), (75, 285245), (89, 240375), (125, 171147), (267, 80125), (375, 57049), (445, 48075), (641, 33375), (1335, 16025), (1923, 11125), (2225, 9615), (3205, 6675)]