20635866

素因数分解:

$2^1\times 3^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:387

約数の個数: 48

約数和(自身を含む): 46208448

約数和(自身を除く): 25572582

約数列:

[1, 2, 3, 6, 9, 18, 67, 71, 134, 142, 201, 213, 241, 402, 426, 482, 603, 639, 723, 1206, 1278, 1446, 2169, 4338, 4757, 9514, 14271, 16147, 17111, 28542, 32294, 34222, 42813, 48441, 51333, 85626, 96882, 102666, 145323, 153999, 290646, 307998, 1146437, 2292874, 3439311, 6878622, 10317933, 20635866]

約数ペア:

[(1, 20635866), (2, 10317933), (3, 6878622), (6, 3439311), (9, 2292874), (18, 1146437), (67, 307998), (71, 290646), (134, 153999), (142, 145323), (201, 102666), (213, 96882), (241, 85626), (402, 51333), (426, 48441), (482, 42813), (603, 34222), (639, 32294), (723, 28542), (1206, 17111), (1278, 16147), (1446, 14271), (2169, 9514), (4338, 4757)]