21016814

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3121}}^1$

素因数の和:3180

約数の個数: 32

約数和(自身を含む): 39861696

約数和(自身を除く): 18844882

約数列:

[1, 2, 7, 13, 14, 26, 37, 74, 91, 182, 259, 481, 518, 962, 3121, 3367, 6242, 6734, 21847, 40573, 43694, 81146, 115477, 230954, 284011, 568022, 808339, 1501201, 1616678, 3002402, 10508407, 21016814]

約数ペア:

[(1, 21016814), (2, 10508407), (7, 3002402), (13, 1616678), (14, 1501201), (26, 808339), (37, 568022), (74, 284011), (91, 230954), (182, 115477), (259, 81146), (481, 43694), (518, 40573), (962, 21847), (3121, 6734), (3367, 6242)]