81996873

素因数分解:

$3^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{20443}}^1$

素因数の和:20644

約数の個数: 16

約数和(自身を含む): 125607936

約数和(自身を除く): 43611063

約数列:

[1, 3, 7, 21, 191, 573, 1337, 4011, 20443, 61329, 143101, 429303, 3904613, 11713839, 27332291, 81996873]

約数ペア:

[(1, 81996873), (3, 27332291), (7, 11713839), (21, 3904613), (191, 429303), (573, 143101), (1337, 61329), (4011, 20443)]