20886888

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1297}}^1$

素因数の和:1378

約数の個数: 64

約数和(自身を含む): 57942720

約数和(自身を除く): 37055832

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 61, 66, 88, 122, 132, 183, 244, 264, 366, 488, 671, 732, 1297, 1342, 1464, 2013, 2594, 2684, 3891, 4026, 5188, 5368, 7782, 8052, 10376, 14267, 15564, 16104, 28534, 31128, 42801, 57068, 79117, 85602, 114136, 158234, 171204, 237351, 316468, 342408, 474702, 632936, 870287, 949404, 1740574, 1898808, 2610861, 3481148, 5221722, 6962296, 10443444, 20886888]

約数ペア:

[(1, 20886888), (2, 10443444), (3, 6962296), (4, 5221722), (6, 3481148), (8, 2610861), (11, 1898808), (12, 1740574), (22, 949404), (24, 870287), (33, 632936), (44, 474702), (61, 342408), (66, 316468), (88, 237351), (122, 171204), (132, 158234), (183, 114136), (244, 85602), (264, 79117), (366, 57068), (488, 42801), (671, 31128), (732, 28534), (1297, 16104), (1342, 15564), (1464, 14267), (2013, 10376), (2594, 8052), (2684, 7782), (3891, 5368), (4026, 5188)]