18995792

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1259}}^1$

素因数の和:1331

約数の個数: 40

約数和(自身を含む): 39372480

約数和(自身を除く): 20376688

約数列:

[1, 2, 4, 8, 16, 23, 41, 46, 82, 92, 164, 184, 328, 368, 656, 943, 1259, 1886, 2518, 3772, 5036, 7544, 10072, 15088, 20144, 28957, 51619, 57914, 103238, 115828, 206476, 231656, 412952, 463312, 825904, 1187237, 2374474, 4748948, 9497896, 18995792]

約数ペア:

[(1, 18995792), (2, 9497896), (4, 4748948), (8, 2374474), (16, 1187237), (23, 825904), (41, 463312), (46, 412952), (82, 231656), (92, 206476), (164, 115828), (184, 103238), (328, 57914), (368, 51619), (656, 28957), (943, 20144), (1259, 15088), (1886, 10072), (2518, 7544), (3772, 5036)]