2017647825

素因数分解:

$3^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{378901}}^1$

素因数の和:378985

約数の個数: 24

約数和(自身を含む): 3382837056

約数和(自身を除く): 1365189231

約数列:

[1, 3, 5, 15, 25, 71, 75, 213, 355, 1065, 1775, 5325, 378901, 1136703, 1894505, 5683515, 9472525, 26901971, 28417575, 80705913, 134509855, 403529565, 672549275, 2017647825]

約数ペア:

[(1, 2017647825), (3, 672549275), (5, 403529565), (15, 134509855), (25, 80705913), (71, 28417575), (75, 26901971), (213, 9472525), (355, 5683515), (1065, 1894505), (1775, 1136703), (5325, 378901)]