21459854

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43441}}^1$

素因数の和:43475

約数の個数: 16

約数和(自身を含む): 36491280

約数和(自身を除く): 15031426

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 43441, 86882, 564733, 825379, 1129466, 1650758, 10729927, 21459854]

約数ペア:

[(1, 21459854), (2, 10729927), (13, 1650758), (19, 1129466), (26, 825379), (38, 564733), (247, 86882), (494, 43441)]