81396981

素因数分解:

$3^5\times {\mathrm{131}}^1\times {\mathrm{2557}}^1$

素因数の和:2703

約数の個数: 24

約数和(自身を含む): 122906784

約数和(自身を除く): 41509803

約数列:

[1, 3, 9, 27, 81, 131, 243, 393, 1179, 2557, 3537, 7671, 10611, 23013, 31833, 69039, 207117, 334967, 621351, 1004901, 3014703, 9044109, 27132327, 81396981]

約数ペア:

[(1, 81396981), (3, 27132327), (9, 9044109), (27, 3014703), (81, 1004901), (131, 621351), (243, 334967), (393, 207117), (1179, 69039), (2557, 31833), (3537, 23013), (7671, 10611)]