21224615

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{7207}}^1$

素因数の和:7262

約数の個数: 16

約数和(自身を含む): 27678720

約数和(自身を除く): 6454105

約数列:

[1, 5, 19, 31, 95, 155, 589, 2945, 7207, 36035, 136933, 223417, 684665, 1117085, 4244923, 21224615]

約数ペア:

[(1, 21224615), (5, 4244923), (19, 1117085), (31, 684665), (95, 223417), (155, 136933), (589, 36035), (2945, 7207)]