19663428

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{661}}^1$

素因数の和:772

約数の個数: 48

約数和(自身を含む): 47897024

約数和(自身を除く): 28233596

約数列:

[1, 2, 3, 4, 6, 12, 37, 67, 74, 111, 134, 148, 201, 222, 268, 402, 444, 661, 804, 1322, 1983, 2479, 2644, 3966, 4958, 7437, 7932, 9916, 14874, 24457, 29748, 44287, 48914, 73371, 88574, 97828, 132861, 146742, 177148, 265722, 293484, 531444, 1638619, 3277238, 4915857, 6554476, 9831714, 19663428]

約数ペア:

[(1, 19663428), (2, 9831714), (3, 6554476), (4, 4915857), (6, 3277238), (12, 1638619), (37, 531444), (67, 293484), (74, 265722), (111, 177148), (134, 146742), (148, 132861), (201, 97828), (222, 88574), (268, 73371), (402, 48914), (444, 44287), (661, 29748), (804, 24457), (1322, 14874), (1983, 9916), (2479, 7932), (2644, 7437), (3966, 4958)]