21786986

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{27031}}^1$

素因数の和:27077

約数の個数: 16

約数和(自身を含む): 36331008

約数和(自身を除く): 14544022

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 27031, 54062, 351403, 702806, 837961, 1675922, 10893493, 21786986]

約数ペア:

[(1, 21786986), (2, 10893493), (13, 1675922), (26, 837961), (31, 702806), (62, 351403), (403, 54062), (806, 27031)]