18922917

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{25537}}^1$

素因数の和:25572

約数の個数: 16

約数和(自身を含む): 28602560

約数和(自身を除く): 9679643

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 25537, 76611, 331981, 485203, 995943, 1455609, 6307639, 18922917]

約数ペア:

[(1, 18922917), (3, 6307639), (13, 1455609), (19, 995943), (39, 485203), (57, 331981), (247, 76611), (741, 25537)]