21972651

素因数分解:

$3^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{571}}^1$

素因数の和:802

約数の個数: 16

約数和(自身を含む): 29872128

約数和(自身を除く): 7899477

約数列:

[1, 3, 101, 127, 303, 381, 571, 1713, 12827, 38481, 57671, 72517, 173013, 217551, 7324217, 21972651]

約数ペア:

[(1, 21972651), (3, 7324217), (101, 217551), (127, 173013), (303, 72517), (381, 57671), (571, 38481), (1713, 12827)]