18930363

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{571}}^1$

素因数の和:874

約数の個数: 16

約数和(自身を含む): 25973376

約数和(自身を除く): 7043013

約数列:

[1, 3, 43, 129, 257, 571, 771, 1713, 11051, 24553, 33153, 73659, 146747, 440241, 6310121, 18930363]

約数ペア:

[(1, 18930363), (3, 6310121), (43, 440241), (129, 146747), (257, 73659), (571, 33153), (771, 24553), (1713, 11051)]