51781245

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^2\times {\mathrm{1867}}^1$

素因数の和:1961

約数の個数: 24

約数和(自身を含む): 84866976

約数和(自身を除く): 33085731

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 1849, 1867, 5547, 5601, 9245, 9335, 27735, 28005, 80281, 240843, 401405, 1204215, 3452083, 10356249, 17260415, 51781245]

約数ペア:

[(1, 51781245), (3, 17260415), (5, 10356249), (15, 3452083), (43, 1204215), (129, 401405), (215, 240843), (645, 80281), (1849, 28005), (1867, 27735), (5547, 9335), (5601, 9245)]