18663358

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{70163}}^1$

素因数の和:70191

約数の個数: 16

約数和(自身を含む): 33678720

約数和(自身を除く): 15015362

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 70163, 140326, 491141, 982282, 1333097, 2666194, 9331679, 18663358]

約数ペア:

[(1, 18663358), (2, 9331679), (7, 2666194), (14, 1333097), (19, 982282), (38, 491141), (133, 140326), (266, 70163)]