216966925

素因数分解:

$5^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{12037}}^1$

素因数の和:12157

約数の個数: 24

約数和(自身を含む): 310484096

約数和(自身を除く): 93517171

約数列:

[1, 5, 7, 25, 35, 103, 175, 515, 721, 2575, 3605, 12037, 18025, 60185, 84259, 300925, 421295, 1239811, 2106475, 6199055, 8678677, 30995275, 43393385, 216966925]

約数ペア:

[(1, 216966925), (5, 43393385), (7, 30995275), (25, 8678677), (35, 6199055), (103, 2106475), (175, 1239811), (515, 421295), (721, 300925), (2575, 84259), (3605, 60185), (12037, 18025)]