21406268

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{3643}}^1$

素因数の和:3773

約数の個数: 24

約数和(自身を含む): 40710768

約数和(自身を除く): 19304500

約数列:

[1, 2, 4, 13, 26, 52, 113, 226, 452, 1469, 2938, 3643, 5876, 7286, 14572, 47359, 94718, 189436, 411659, 823318, 1646636, 5351567, 10703134, 21406268]

約数ペア:

[(1, 21406268), (2, 10703134), (4, 5351567), (13, 1646636), (26, 823318), (52, 411659), (113, 189436), (226, 94718), (452, 47359), (1469, 14572), (2938, 7286), (3643, 5876)]