20938775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5857}}^1$

素因数の和:5891

約数の個数: 24

約数和(自身を含む): 30508464

約数和(自身を除く): 9569689

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 275, 325, 715, 3575, 5857, 29285, 64427, 76141, 146425, 322135, 380705, 837551, 1610675, 1903525, 4187755, 20938775]

約数ペア:

[(1, 20938775), (5, 4187755), (11, 1903525), (13, 1610675), (25, 837551), (55, 380705), (65, 322135), (143, 146425), (275, 76141), (325, 64427), (715, 29285), (3575, 5857)]