21941270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{12983}}^1$

素因数の和:13016

約数の個数: 24

約数和(自身を含む): 42769296

約数和(自身を除く): 20828026

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 12983, 25966, 64915, 129830, 168779, 337558, 843895, 1687790, 2194127, 4388254, 10970635, 21941270]

約数ペア:

[(1, 21941270), (2, 10970635), (5, 4388254), (10, 2194127), (13, 1687790), (26, 843895), (65, 337558), (130, 168779), (169, 129830), (338, 64915), (845, 25966), (1690, 12983)]