18997612

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{443}}^1$

素因数の和:669

約数の個数: 24

約数和(自身を含む): 34013952

約数和(自身を除く): 15016340

約数列:

[1, 2, 4, 71, 142, 151, 284, 302, 443, 604, 886, 1772, 10721, 21442, 31453, 42884, 62906, 66893, 125812, 133786, 267572, 4749403, 9498806, 18997612]

約数ペア:

[(1, 18997612), (2, 9498806), (4, 4749403), (71, 267572), (142, 133786), (151, 125812), (284, 66893), (302, 62906), (443, 42884), (604, 31453), (886, 21442), (1772, 10721)]