221438165

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{271}}^1\times {\mathrm{967}}^1$

素因数の和:1269

約数の個数: 24

約数和(自身を含む): 289099008

約数和(自身を除く): 67660843

約数列:

[1, 5, 13, 65, 169, 271, 845, 967, 1355, 3523, 4835, 12571, 17615, 45799, 62855, 163423, 228995, 262057, 817115, 1310285, 3406741, 17033705, 44287633, 221438165]

約数ペア:

[(1, 221438165), (5, 44287633), (13, 17033705), (65, 3406741), (169, 1310285), (271, 817115), (845, 262057), (967, 228995), (1355, 163423), (3523, 62855), (4835, 45799), (12571, 17615)]