278825733

素因数分解:

$3^6\times {\mathrm{71}}^1\times {\mathrm{5387}}^1$

素因数の和:5476

約数の個数: 28

約数和(自身を含む): 424014048

約数和(自身を除く): 145188315

約数列:

[1, 3, 9, 27, 71, 81, 213, 243, 639, 729, 1917, 5387, 5751, 16161, 17253, 48483, 51759, 145449, 382477, 436347, 1147431, 1309041, 3442293, 3927123, 10326879, 30980637, 92941911, 278825733]

約数ペア:

[(1, 278825733), (3, 92941911), (9, 30980637), (27, 10326879), (71, 3927123), (81, 3442293), (213, 1309041), (243, 1147431), (639, 436347), (729, 382477), (1917, 145449), (5387, 51759), (5751, 48483), (16161, 17253)]