217199455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{1151}}^1$

素因数の和:1287

約数の個数: 32

約数和(自身を含む): 294617088

約数和(自身を除く): 77417633

約数列:

[1, 5, 11, 47, 55, 73, 235, 365, 517, 803, 1151, 2585, 3431, 4015, 5755, 12661, 17155, 37741, 54097, 63305, 84023, 188705, 270485, 420115, 595067, 924253, 2975335, 3949081, 4621265, 19745405, 43439891, 217199455]

約数ペア:

[(1, 217199455), (5, 43439891), (11, 19745405), (47, 4621265), (55, 3949081), (73, 2975335), (235, 924253), (365, 595067), (517, 420115), (803, 270485), (1151, 188705), (2585, 84023), (3431, 63305), (4015, 54097), (5755, 37741), (12661, 17155)]