20815608

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2131}}^1$

素因数の和:2188

約数の個数: 64

約数和(自身を含む): 58331520

約数和(自身を除く): 37515912

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 37, 44, 66, 74, 88, 111, 132, 148, 222, 264, 296, 407, 444, 814, 888, 1221, 1628, 2131, 2442, 3256, 4262, 4884, 6393, 8524, 9768, 12786, 17048, 23441, 25572, 46882, 51144, 70323, 78847, 93764, 140646, 157694, 187528, 236541, 281292, 315388, 473082, 562584, 630776, 867317, 946164, 1734634, 1892328, 2601951, 3469268, 5203902, 6938536, 10407804, 20815608]

約数ペア:

[(1, 20815608), (2, 10407804), (3, 6938536), (4, 5203902), (6, 3469268), (8, 2601951), (11, 1892328), (12, 1734634), (22, 946164), (24, 867317), (33, 630776), (37, 562584), (44, 473082), (66, 315388), (74, 281292), (88, 236541), (111, 187528), (132, 157694), (148, 140646), (222, 93764), (264, 78847), (296, 70323), (407, 51144), (444, 46882), (814, 25572), (888, 23441), (1221, 17048), (1628, 12786), (2131, 9768), (2442, 8524), (3256, 6393), (4262, 4884)]