15998021221

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{473861}}^1$

素因数の和:473941

約数の個数: 24

約数和(自身を含む): 20419661304

約数和(自身を除く): 4421640083

約数列:

[1, 7, 13, 49, 53, 91, 371, 637, 689, 2597, 4823, 33761, 473861, 3317027, 6160193, 23219189, 25114633, 43121351, 175802431, 301849457, 326490229, 1230617017, 2285431603, 15998021221]

約数ペア:

[(1, 15998021221), (7, 2285431603), (13, 1230617017), (49, 326490229), (53, 301849457), (91, 175802431), (371, 43121351), (637, 25114633), (689, 23219189), (2597, 6160193), (4823, 3317027), (33761, 473861)]