21132670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1091}}^1$

素因数の和:1260

約数の個数: 32

約数和(自身を含む): 41277600

約数和(自身を除く): 20144930

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 149, 298, 745, 1091, 1490, 1937, 2182, 3874, 5455, 9685, 10910, 14183, 19370, 28366, 70915, 141830, 162559, 325118, 812795, 1625590, 2113267, 4226534, 10566335, 21132670]

約数ペア:

[(1, 21132670), (2, 10566335), (5, 4226534), (10, 2113267), (13, 1625590), (26, 812795), (65, 325118), (130, 162559), (149, 141830), (298, 70915), (745, 28366), (1091, 19370), (1490, 14183), (1937, 10910), (2182, 9685), (3874, 5455)]