81454359

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{1021}}^1$

素因数の和:1191

約数の個数: 32

約数和(自身を含む): 129507840

約数和(自身を除く): 48053481

約数列:

[1, 3, 7, 21, 29, 87, 131, 203, 393, 609, 917, 1021, 2751, 3063, 3799, 7147, 11397, 21441, 26593, 29609, 79779, 88827, 133751, 207263, 401253, 621789, 936257, 2808771, 3878779, 11636337, 27151453, 81454359]

約数ペア:

[(1, 81454359), (3, 27151453), (7, 11636337), (21, 3878779), (29, 2808771), (87, 936257), (131, 621789), (203, 401253), (393, 207263), (609, 133751), (917, 88827), (1021, 79779), (2751, 29609), (3063, 26593), (3799, 21441), (7147, 11397)]