18878244

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20431}}^1$

素因数の和:20456

約数の個数: 48

約数和(自身を含む): 54921216

約数和(自身を除く): 36042972

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 84, 132, 154, 231, 308, 462, 924, 20431, 40862, 61293, 81724, 122586, 143017, 224741, 245172, 286034, 429051, 449482, 572068, 674223, 858102, 898964, 1348446, 1573187, 1716204, 2696892, 3146374, 4719561, 6292748, 9439122, 18878244]

約数ペア:

[(1, 18878244), (2, 9439122), (3, 6292748), (4, 4719561), (6, 3146374), (7, 2696892), (11, 1716204), (12, 1573187), (14, 1348446), (21, 898964), (22, 858102), (28, 674223), (33, 572068), (42, 449482), (44, 429051), (66, 286034), (77, 245172), (84, 224741), (132, 143017), (154, 122586), (231, 81724), (308, 61293), (462, 40862), (924, 20431)]