21140639

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^3\times {\mathrm{331}}^1$

素因数の和:395

約数の個数: 16

約数和(自身を含む): 24262560

約数和(自身を除く): 3121921

約数列:

[1, 13, 17, 221, 289, 331, 3757, 4303, 4913, 5627, 63869, 73151, 95659, 1243567, 1626203, 21140639]

約数ペア:

[(1, 21140639), (13, 1626203), (17, 1243567), (221, 95659), (289, 73151), (331, 63869), (3757, 5627), (4303, 4913)]