21718889

素因数分解:

${\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:320

約数の個数: 16

約数和(自身を含む): 23237760

約数和(自身を除く): 1518871

約数列:

[1, 37, 41, 103, 139, 1517, 3811, 4223, 5143, 5699, 14317, 156251, 210863, 529729, 586997, 21718889]

約数ペア:

[(1, 21718889), (37, 586997), (41, 529729), (103, 210863), (139, 156251), (1517, 14317), (3811, 5699), (4223, 5143)]