21926125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:262

約数の個数: 32

約数和(自身を含む): 29981952

約数和(自身を除く): 8055827

約数列:

[1, 5, 13, 25, 65, 103, 125, 131, 325, 515, 655, 1339, 1625, 1703, 2575, 3275, 6695, 8515, 12875, 13493, 16375, 33475, 42575, 67465, 167375, 175409, 212875, 337325, 877045, 1686625, 4385225, 21926125]

約数ペア:

[(1, 21926125), (5, 4385225), (13, 1686625), (25, 877045), (65, 337325), (103, 212875), (125, 175409), (131, 167375), (325, 67465), (515, 42575), (655, 33475), (1339, 16375), (1625, 13493), (1703, 12875), (2575, 8515), (3275, 6695)]