21230025

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{16651}}^1$

素因数の和:16681

約数の個数: 24

約数和(自身を含む): 37167264

約数和(自身を除く): 15937239

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 16651, 49953, 83255, 249765, 283067, 416275, 849201, 1248825, 1415335, 4246005, 7076675, 21230025]

約数ペア:

[(1, 21230025), (3, 7076675), (5, 4246005), (15, 1415335), (17, 1248825), (25, 849201), (51, 416275), (75, 283067), (85, 249765), (255, 83255), (425, 49953), (1275, 16651)]