81891801

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{7159}}^1$

素因数の和:7237

約数の個数: 24

約数和(自身を含む): 125099520

約数和(自身を除く): 43207719

約数列:

[1, 3, 9, 31, 41, 93, 123, 279, 369, 1271, 3813, 7159, 11439, 21477, 64431, 221929, 293519, 665787, 880557, 1997361, 2641671, 9099089, 27297267, 81891801]

約数ペア:

[(1, 81891801), (3, 27297267), (9, 9099089), (31, 2641671), (41, 1997361), (93, 880557), (123, 665787), (279, 293519), (369, 221929), (1271, 64431), (3813, 21477), (7159, 11439)]