19864910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{3727}}^1$

素因数の和:3788

約数の個数: 32

約数和(自身を含む): 39457152

約数和(自身を除く): 19592242

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 205, 410, 533, 1066, 2665, 3727, 5330, 7454, 18635, 37270, 48451, 96902, 152807, 242255, 305614, 484510, 764035, 1528070, 1986491, 3972982, 9932455, 19864910]

約数ペア:

[(1, 19864910), (2, 9932455), (5, 3972982), (10, 1986491), (13, 1528070), (26, 764035), (41, 484510), (65, 305614), (82, 242255), (130, 152807), (205, 96902), (410, 48451), (533, 37270), (1066, 18635), (2665, 7454), (3727, 5330)]