21537139

素因数分解:

${\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{349}}^1$

素因数の和:510

約数の個数: 16

約数和(自身を含む): 23990400

約数和(自身を除く): 2453261

約数列:

[1, 13, 47, 101, 349, 611, 1313, 4537, 4747, 16403, 35249, 61711, 213239, 458237, 1656703, 21537139]

約数ペア:

[(1, 21537139), (13, 1656703), (47, 458237), (101, 213239), (349, 61711), (611, 35249), (1313, 16403), (4537, 4747)]