81716901

素因数分解:

$3^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{21739}}^1$

素因数の和:21928

約数の個数: 16

約数和(自身を含む): 125222400

約数和(自身を除く): 43505499

約数列:

[1, 3, 7, 21, 179, 537, 1253, 3759, 21739, 65217, 152173, 456519, 3891281, 11673843, 27238967, 81716901]

約数ペア:

[(1, 81716901), (3, 27238967), (7, 11673843), (21, 3891281), (179, 456519), (537, 152173), (1253, 65217), (3759, 21739)]