278344827

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{631}}^1\times {\mathrm{2131}}^1$

素因数の和:2791

約数の個数: 24

約数和(自身を含む): 420396288

約数和(自身を除く): 142051461

約数列:

[1, 3, 9, 23, 69, 207, 631, 1893, 2131, 5679, 6393, 14513, 19179, 43539, 49013, 130617, 147039, 441117, 1344661, 4033983, 12101949, 30927203, 92781609, 278344827]

約数ペア:

[(1, 278344827), (3, 92781609), (9, 30927203), (23, 12101949), (69, 4033983), (207, 1344661), (631, 441117), (1893, 147039), (2131, 130617), (5679, 49013), (6393, 43539), (14513, 19179)]