21127875

素因数分解:

$3^1\times 5^3\times {\mathrm{103}}^1\times {\mathrm{547}}^1$

素因数の和:668

約数の個数: 32

約数和(自身を含む): 35563008

約数和(自身を除く): 14435133

約数列:

[1, 3, 5, 15, 25, 75, 103, 125, 309, 375, 515, 547, 1545, 1641, 2575, 2735, 7725, 8205, 12875, 13675, 38625, 41025, 56341, 68375, 169023, 205125, 281705, 845115, 1408525, 4225575, 7042625, 21127875]

約数ペア:

[(1, 21127875), (3, 7042625), (5, 4225575), (15, 1408525), (25, 845115), (75, 281705), (103, 205125), (125, 169023), (309, 68375), (375, 56341), (515, 41025), (547, 38625), (1545, 13675), (1641, 12875), (2575, 8205), (2735, 7725)]