20818908

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2767}}^1$

素因数の和:2807

約数の個数: 72

約数和(自身を含む): 60453120

約数和(自身を除く): 39634212

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 19, 22, 33, 36, 38, 44, 57, 66, 76, 99, 114, 132, 171, 198, 209, 228, 342, 396, 418, 627, 684, 836, 1254, 1881, 2508, 2767, 3762, 5534, 7524, 8301, 11068, 16602, 24903, 30437, 33204, 49806, 52573, 60874, 91311, 99612, 105146, 121748, 157719, 182622, 210292, 273933, 315438, 365244, 473157, 547866, 578303, 630876, 946314, 1095732, 1156606, 1734909, 1892628, 2313212, 3469818, 5204727, 6939636, 10409454, 20818908]

約数ペア:

[(1, 20818908), (2, 10409454), (3, 6939636), (4, 5204727), (6, 3469818), (9, 2313212), (11, 1892628), (12, 1734909), (18, 1156606), (19, 1095732), (22, 946314), (33, 630876), (36, 578303), (38, 547866), (44, 473157), (57, 365244), (66, 315438), (76, 273933), (99, 210292), (114, 182622), (132, 157719), (171, 121748), (198, 105146), (209, 99612), (228, 91311), (342, 60874), (396, 52573), (418, 49806), (627, 33204), (684, 30437), (836, 24903), (1254, 16602), (1881, 11068), (2508, 8301), (2767, 7524), (3762, 5534)]