18869578

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{521}}^1$

素因数の和:742

約数の個数: 32

約数和(自身を含む): 35078400

約数和(自身を除く): 16208822

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 199, 398, 521, 1042, 1393, 2587, 2786, 3647, 5174, 6773, 7294, 13546, 18109, 36218, 47411, 94822, 103679, 207358, 725753, 1347827, 1451506, 2695654, 9434789, 18869578]

約数ペア:

[(1, 18869578), (2, 9434789), (7, 2695654), (13, 1451506), (14, 1347827), (26, 725753), (91, 207358), (182, 103679), (199, 94822), (398, 47411), (521, 36218), (1042, 18109), (1393, 13546), (2587, 7294), (2786, 6773), (3647, 5174)]