87838821

素因数分解:

$3^2\times 7^2\times {\mathrm{199181}}^1$

素因数の和:199201

約数の個数: 18

約数和(自身を含む): 147593862

約数和(自身を除く): 59755041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 199181, 597543, 1394267, 1792629, 4182801, 9759869, 12548403, 29279607, 87838821]

約数ペア:

[(1, 87838821), (3, 29279607), (7, 12548403), (9, 9759869), (21, 4182801), (49, 1792629), (63, 1394267), (147, 597543), (441, 199181)]