20495706

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:180

約数の個数: 96

約数和(自身を含む): 53370240

約数和(自身を除く): 32874534

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 37, 42, 66, 74, 77, 109, 111, 121, 154, 218, 222, 231, 242, 259, 327, 363, 407, 462, 518, 654, 726, 763, 777, 814, 847, 1199, 1221, 1526, 1554, 1694, 2289, 2398, 2442, 2541, 2849, 3597, 4033, 4477, 4578, 5082, 5698, 7194, 8066, 8393, 8547, 8954, 12099, 13189, 13431, 16786, 17094, 24198, 25179, 26378, 26862, 28231, 31339, 39567, 44363, 50358, 56462, 62678, 79134, 84693, 88726, 92323, 94017, 133089, 169386, 184646, 188034, 266178, 276969, 310541, 487993, 553938, 621082, 931623, 975986, 1463979, 1863246, 2927958, 3415951, 6831902, 10247853, 20495706]

約数ペア:

[(1, 20495706), (2, 10247853), (3, 6831902), (6, 3415951), (7, 2927958), (11, 1863246), (14, 1463979), (21, 975986), (22, 931623), (33, 621082), (37, 553938), (42, 487993), (66, 310541), (74, 276969), (77, 266178), (109, 188034), (111, 184646), (121, 169386), (154, 133089), (218, 94017), (222, 92323), (231, 88726), (242, 84693), (259, 79134), (327, 62678), (363, 56462), (407, 50358), (462, 44363), (518, 39567), (654, 31339), (726, 28231), (763, 26862), (777, 26378), (814, 25179), (847, 24198), (1199, 17094), (1221, 16786), (1526, 13431), (1554, 13189), (1694, 12099), (2289, 8954), (2398, 8547), (2442, 8393), (2541, 8066), (2849, 7194), (3597, 5698), (4033, 5082), (4477, 4578)]