21536553

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1\times {\mathrm{773}}^1$

素因数の和:1064

約数の個数: 16

約数和(自身を含む): 29647296

約数和(自身を除く): 8110743

約数列:

[1, 3, 37, 111, 251, 753, 773, 2319, 9287, 27861, 28601, 85803, 194023, 582069, 7178851, 21536553]

約数ペア:

[(1, 21536553), (3, 7178851), (37, 582069), (111, 194023), (251, 85803), (753, 28601), (773, 27861), (2319, 9287)]