21029710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1949}}^1$

素因数の和:2052

約数の個数: 32

約数和(自身を含む): 41277600

約数和(自身を除く): 20247890

約数列:

[1, 2, 5, 10, 13, 26, 65, 83, 130, 166, 415, 830, 1079, 1949, 2158, 3898, 5395, 9745, 10790, 19490, 25337, 50674, 126685, 161767, 253370, 323534, 808835, 1617670, 2102971, 4205942, 10514855, 21029710]

約数ペア:

[(1, 21029710), (2, 10514855), (5, 4205942), (10, 2102971), (13, 1617670), (26, 808835), (65, 323534), (83, 253370), (130, 161767), (166, 126685), (415, 50674), (830, 25337), (1079, 19490), (1949, 10790), (2158, 9745), (3898, 5395)]