18649431

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{571}}^1$

素因数の和:787

約数の個数: 24

約数和(自身を含む): 28554240

約数和(自身を除く): 9904809

約数列:

[1, 3, 9, 19, 57, 171, 191, 571, 573, 1713, 1719, 3629, 5139, 10849, 10887, 32547, 32661, 97641, 109061, 327183, 981549, 2072159, 6216477, 18649431]

約数ペア:

[(1, 18649431), (3, 6216477), (9, 2072159), (19, 981549), (57, 327183), (171, 109061), (191, 97641), (571, 32661), (573, 32547), (1713, 10887), (1719, 10849), (3629, 5139)]