20985204

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{607}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 50935808

約数和(自身を除く): 29950604

約数列:

[1, 2, 3, 4, 6, 12, 43, 67, 86, 129, 134, 172, 201, 258, 268, 402, 516, 607, 804, 1214, 1821, 2428, 2881, 3642, 5762, 7284, 8643, 11524, 17286, 26101, 34572, 40669, 52202, 78303, 81338, 104404, 122007, 156606, 162676, 244014, 313212, 488028, 1748767, 3497534, 5246301, 6995068, 10492602, 20985204]

約数ペア:

[(1, 20985204), (2, 10492602), (3, 6995068), (4, 5246301), (6, 3497534), (12, 1748767), (43, 488028), (67, 313212), (86, 244014), (129, 162676), (134, 156606), (172, 122007), (201, 104404), (258, 81338), (268, 78303), (402, 52202), (516, 40669), (607, 34572), (804, 26101), (1214, 17286), (1821, 11524), (2428, 8643), (2881, 7284), (3642, 5762)]