21033407

素因数分解:

${\mathrm{31}}^2\times {\mathrm{43}}^1\times {\mathrm{509}}^1$

素因数の和:614

約数の個数: 12

約数和(自身を含む): 22282920

約数和(自身を除く): 1249513

約数列:

[1, 31, 43, 509, 961, 1333, 15779, 21887, 41323, 489149, 678497, 21033407]

約数ペア:

[(1, 21033407), (31, 678497), (43, 489149), (509, 41323), (961, 21887), (1333, 15779)]