21540226

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{1321}}^1$

素因数の和:1617

約数の個数: 16

約数和(自身を含む): 33504768

約数和(自身を除く): 11964542

約数列:

[1, 2, 31, 62, 263, 526, 1321, 2642, 8153, 16306, 40951, 81902, 347423, 694846, 10770113, 21540226]

約数ペア:

[(1, 21540226), (2, 10770113), (31, 694846), (62, 347423), (263, 81902), (526, 40951), (1321, 16306), (2642, 8153)]