18958618

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{271}}^1$

素因数の和:562

約数の個数: 32

約数和(自身を含む): 34467840

約数和(自身を除く): 15509222

約数列:

[1, 2, 7, 14, 19, 38, 133, 263, 266, 271, 526, 542, 1841, 1897, 3682, 3794, 4997, 5149, 9994, 10298, 34979, 36043, 69958, 71273, 72086, 142546, 498911, 997822, 1354187, 2708374, 9479309, 18958618]

約数ペア:

[(1, 18958618), (2, 9479309), (7, 2708374), (14, 1354187), (19, 997822), (38, 498911), (133, 142546), (263, 72086), (266, 71273), (271, 69958), (526, 36043), (542, 34979), (1841, 10298), (1897, 9994), (3682, 5149), (3794, 4997)]