18678639

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{30671}}^1$

素因数の和:30710

約数の個数: 16

約数和(自身を含む): 29445120

約数和(自身を除く): 10766481

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 30671, 92013, 214697, 644091, 889459, 2668377, 6226213, 18678639]

約数ペア:

[(1, 18678639), (3, 6226213), (7, 2668377), (21, 889459), (29, 644091), (87, 214697), (203, 92013), (609, 30671)]