18118809

素因数分解:

$3^5\times {\mathrm{173}}^1\times {\mathrm{431}}^1$

素因数の和:619

約数の個数: 24

約数和(自身を含む): 27361152

約数和(自身を除く): 9242343

約数列:

[1, 3, 9, 27, 81, 173, 243, 431, 519, 1293, 1557, 3879, 4671, 11637, 14013, 34911, 42039, 74563, 104733, 223689, 671067, 2013201, 6039603, 18118809]

約数ペア:

[(1, 18118809), (3, 6039603), (9, 2013201), (27, 671067), (81, 223689), (173, 104733), (243, 74563), (431, 42039), (519, 34911), (1293, 14013), (1557, 11637), (3879, 4671)]