720369

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:197

約数の個数: 24

約数和(自身を含む): 1153152

約数和(自身を除く): 432783

約数列:

[1, 3, 9, 13, 39, 47, 117, 131, 141, 393, 423, 611, 1179, 1703, 1833, 5109, 5499, 6157, 15327, 18471, 55413, 80041, 240123, 720369]

約数ペア:

[(1, 720369), (3, 240123), (9, 80041), (13, 55413), (39, 18471), (47, 15327), (117, 6157), (131, 5499), (141, 5109), (393, 1833), (423, 1703), (611, 1179)]