2137975

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{643}}^1$

素因数の和:679

約数の個数: 24

約数和(自身を含む): 3194240

約数和(自身を除く): 1056265

約数列:

[1, 5, 7, 19, 25, 35, 95, 133, 175, 475, 643, 665, 3215, 3325, 4501, 12217, 16075, 22505, 61085, 85519, 112525, 305425, 427595, 2137975]

約数ペア:

[(1, 2137975), (5, 427595), (7, 305425), (19, 112525), (25, 85519), (35, 61085), (95, 22505), (133, 16075), (175, 12217), (475, 4501), (643, 3325), (665, 3215)]