31409613

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{4357}}^1$

素因数の和:4458

約数の個数: 20

約数和(自身を含む): 47458620

約数和(自身を除く): 16049007

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 4357, 7209, 13071, 39213, 117639, 352917, 387773, 1163319, 3489957, 10469871, 31409613]

約数ペア:

[(1, 31409613), (3, 10469871), (9, 3489957), (27, 1163319), (81, 387773), (89, 352917), (267, 117639), (801, 39213), (2403, 13071), (4357, 7209)]