20827688

素因数分解:

$2^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{4481}}^1$

素因数の和:4577

約数の個数: 32

約数和(自身を含む): 45178560

約数和(自身を除く): 24350872

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 83, 166, 332, 581, 664, 1162, 2324, 4481, 4648, 8962, 17924, 31367, 35848, 62734, 125468, 250936, 371923, 743846, 1487692, 2603461, 2975384, 5206922, 10413844, 20827688]

約数ペア:

[(1, 20827688), (2, 10413844), (4, 5206922), (7, 2975384), (8, 2603461), (14, 1487692), (28, 743846), (56, 371923), (83, 250936), (166, 125468), (332, 62734), (581, 35848), (664, 31367), (1162, 17924), (2324, 8962), (4481, 4648)]