21353410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1979}}^1$

素因数の和:2082

約数の個数: 32

約数和(自身を含む): 41912640

約数和(自身を除く): 20559230

約数列:

[1, 2, 5, 10, 13, 26, 65, 83, 130, 166, 415, 830, 1079, 1979, 2158, 3958, 5395, 9895, 10790, 19790, 25727, 51454, 128635, 164257, 257270, 328514, 821285, 1642570, 2135341, 4270682, 10676705, 21353410]

約数ペア:

[(1, 21353410), (2, 10676705), (5, 4270682), (10, 2135341), (13, 1642570), (26, 821285), (65, 328514), (83, 257270), (130, 164257), (166, 128635), (415, 51454), (830, 25727), (1079, 19790), (1979, 10790), (2158, 9895), (3958, 5395)]