81989843

素因数分解:

${\mathrm{13}}^3\times {\mathrm{67}}^1\times {\mathrm{557}}^1$

素因数の和:663

約数の個数: 16

約数和(自身を含む): 90306720

約数和(自身を除く): 8316877

約数列:

[1, 13, 67, 169, 557, 871, 2197, 7241, 11323, 37319, 94133, 147199, 485147, 1223729, 6306911, 81989843]

約数ペア:

[(1, 81989843), (13, 6306911), (67, 1223729), (169, 485147), (557, 147199), (871, 94133), (2197, 37319), (7241, 11323)]