17968225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{293}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 24498432

約数和(自身を除く): 6530207

約数列:

[1, 5, 11, 25, 55, 223, 275, 293, 1115, 1465, 2453, 3223, 5575, 7325, 12265, 16115, 61325, 65339, 80575, 326695, 718729, 1633475, 3593645, 17968225]

約数ペア:

[(1, 17968225), (5, 3593645), (11, 1633475), (25, 718729), (55, 326695), (223, 80575), (275, 65339), (293, 61325), (1115, 16115), (1465, 12265), (2453, 7325), (3223, 5575)]