20518212

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1087}}^1$

素因数の和:1129

約数の個数: 72

約数和(自身を含む): 56723968

約数和(自身を除く): 36205756

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 121, 132, 143, 156, 242, 286, 363, 429, 484, 572, 726, 858, 1087, 1452, 1573, 1716, 2174, 3146, 3261, 4348, 4719, 6292, 6522, 9438, 11957, 13044, 14131, 18876, 23914, 28262, 35871, 42393, 47828, 56524, 71742, 84786, 131527, 143484, 155441, 169572, 263054, 310882, 394581, 466323, 526108, 621764, 789162, 932646, 1578324, 1709851, 1865292, 3419702, 5129553, 6839404, 10259106, 20518212]

約数ペア:

[(1, 20518212), (2, 10259106), (3, 6839404), (4, 5129553), (6, 3419702), (11, 1865292), (12, 1709851), (13, 1578324), (22, 932646), (26, 789162), (33, 621764), (39, 526108), (44, 466323), (52, 394581), (66, 310882), (78, 263054), (121, 169572), (132, 155441), (143, 143484), (156, 131527), (242, 84786), (286, 71742), (363, 56524), (429, 47828), (484, 42393), (572, 35871), (726, 28262), (858, 23914), (1087, 18876), (1452, 14131), (1573, 13044), (1716, 11957), (2174, 9438), (3146, 6522), (3261, 6292), (4348, 4719)]