81217779

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{347}}^1\times {\mathrm{1279}}^1$

素因数の和:1690

約数の個数: 16

約数和(自身を含む): 110469120

約数和(自身を除く): 29251341

約数列:

[1, 3, 61, 183, 347, 1041, 1279, 3837, 21167, 63501, 78019, 234057, 443813, 1331439, 27072593, 81217779]

約数ペア:

[(1, 81217779), (3, 27072593), (61, 1331439), (183, 443813), (347, 234057), (1041, 78019), (1279, 63501), (3837, 21167)]