19523872

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{647}}^1$

素因数の和:721

約数の個数: 48

約数和(自身を含む): 41150592

約数和(自身を除く): 21626720

約数列:

[1, 2, 4, 8, 16, 23, 32, 41, 46, 82, 92, 164, 184, 328, 368, 647, 656, 736, 943, 1294, 1312, 1886, 2588, 3772, 5176, 7544, 10352, 14881, 15088, 20704, 26527, 29762, 30176, 53054, 59524, 106108, 119048, 212216, 238096, 424432, 476192, 610121, 848864, 1220242, 2440484, 4880968, 9761936, 19523872]

約数ペア:

[(1, 19523872), (2, 9761936), (4, 4880968), (8, 2440484), (16, 1220242), (23, 848864), (32, 610121), (41, 476192), (46, 424432), (82, 238096), (92, 212216), (164, 119048), (184, 106108), (328, 59524), (368, 53054), (647, 30176), (656, 29762), (736, 26527), (943, 20704), (1294, 15088), (1312, 14881), (1886, 10352), (2588, 7544), (3772, 5176)]