20867812563

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{112481}}^1$

素因数の和:112635

約数の個数: 32

約数和(自身を含む): 30839864832

約数和(自身を除く): 9972052269

約数列:

[1, 3, 13, 39, 67, 71, 201, 213, 871, 923, 2613, 2769, 4757, 14271, 61841, 112481, 185523, 337443, 1462253, 4386759, 7536227, 7986151, 22608681, 23958453, 97970951, 103819963, 293912853, 311459889, 535072117, 1605216351, 6955937521, 20867812563]

約数ペア:

[(1, 20867812563), (3, 6955937521), (13, 1605216351), (39, 535072117), (67, 311459889), (71, 293912853), (201, 103819963), (213, 97970951), (871, 23958453), (923, 22608681), (2613, 7986151), (2769, 7536227), (4757, 4386759), (14271, 1462253), (61841, 337443), (112481, 185523)]