21868575

素因数分解:

$3^1\times 5^2\times {\mathrm{151}}^1\times {\mathrm{1931}}^1$

素因数の和:2095

約数の個数: 24

約数和(自身を含む): 36414336

約数和(自身を除く): 14545761

約数列:

[1, 3, 5, 15, 25, 75, 151, 453, 755, 1931, 2265, 3775, 5793, 9655, 11325, 28965, 48275, 144825, 291581, 874743, 1457905, 4373715, 7289525, 21868575]

約数ペア:

[(1, 21868575), (3, 7289525), (5, 4373715), (15, 1457905), (25, 874743), (75, 291581), (151, 144825), (453, 48275), (755, 28965), (1931, 11325), (2265, 9655), (3775, 5793)]