85816521

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71693}}^1$

素因数の和:71725

約数の個数: 24

約数和(自身を含む): 149123520

約数和(自身を除く): 63306999

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 71693, 215079, 501851, 645237, 1362167, 1505553, 4086501, 4516659, 9535169, 12259503, 28605507, 85816521]

約数ペア:

[(1, 85816521), (3, 28605507), (7, 12259503), (9, 9535169), (19, 4516659), (21, 4086501), (57, 1505553), (63, 1362167), (133, 645237), (171, 501851), (399, 215079), (1197, 71693)]