21286434

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{272903}}^1$

素因数の和:272921

約数の個数: 16

約数和(自身を含む): 45847872

約数和(自身を除く): 24561438

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 272903, 545806, 818709, 1637418, 3547739, 7095478, 10643217, 21286434]

約数ペア:

[(1, 21286434), (2, 10643217), (3, 7095478), (6, 3547739), (13, 1637418), (26, 818709), (39, 545806), (78, 272903)]