20543792

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{16253}}^1$

素因数の和:16340

約数の個数: 20

約数和(自身を含む): 40309920

約数和(自身を除く): 19766128

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 16253, 32506, 65012, 130024, 260048, 1283987, 2567974, 5135948, 10271896, 20543792]

約数ペア:

[(1, 20543792), (2, 10271896), (4, 5135948), (8, 2567974), (16, 1283987), (79, 260048), (158, 130024), (316, 65012), (632, 32506), (1264, 16253)]