21415075

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1811}}^1$

素因数の和:1875

約数の個数: 24

約数和(自身を含む): 29658816

約数和(自身を除く): 8243741

約数列:

[1, 5, 11, 25, 43, 55, 215, 275, 473, 1075, 1811, 2365, 9055, 11825, 19921, 45275, 77873, 99605, 389365, 498025, 856603, 1946825, 4283015, 21415075]

約数ペア:

[(1, 21415075), (5, 4283015), (11, 1946825), (25, 856603), (43, 498025), (55, 389365), (215, 99605), (275, 77873), (473, 45275), (1075, 19921), (1811, 11825), (2365, 9055)]