21863140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{84089}}^1$

素因数の和:84111

約数の個数: 24

約数和(自身を含む): 49444920

約数和(自身を除く): 27581780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 84089, 168178, 336356, 420445, 840890, 1093157, 1681780, 2186314, 4372628, 5465785, 10931570, 21863140]

約数ペア:

[(1, 21863140), (2, 10931570), (4, 5465785), (5, 4372628), (10, 2186314), (13, 1681780), (20, 1093157), (26, 840890), (52, 420445), (65, 336356), (130, 168178), (260, 84089)]