20516678

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{811}}^1$

素因数の和:972

約数の個数: 32

約数和(自身を含む): 38196480

約数和(自身を除く): 17679802

約数列:

[1, 2, 7, 13, 14, 26, 91, 139, 182, 278, 811, 973, 1622, 1807, 1946, 3614, 5677, 10543, 11354, 12649, 21086, 25298, 73801, 112729, 147602, 225458, 789103, 1465477, 1578206, 2930954, 10258339, 20516678]

約数ペア:

[(1, 20516678), (2, 10258339), (7, 2930954), (13, 1578206), (14, 1465477), (26, 789103), (91, 225458), (139, 147602), (182, 112729), (278, 73801), (811, 25298), (973, 21086), (1622, 12649), (1807, 11354), (1946, 10543), (3614, 5677)]