21422180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{82393}}^1$

素因数の和:82415

約数の個数: 24

約数和(自身を含む): 48447672

約数和(自身を除く): 27025492

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 82393, 164786, 329572, 411965, 823930, 1071109, 1647860, 2142218, 4284436, 5355545, 10711090, 21422180]

約数ペア:

[(1, 21422180), (2, 10711090), (4, 5355545), (5, 4284436), (10, 2142218), (13, 1647860), (20, 1071109), (26, 823930), (52, 411965), (65, 329572), (130, 164786), (260, 82393)]