71678943

素因数分解:

$3^2\times 7^1\times {\mathrm{241}}^1\times {\mathrm{4721}}^1$

素因数の和:4975

約数の個数: 24

約数和(自身を含む): 118843296

約数和(自身を除く): 47164353

約数列:

[1, 3, 7, 9, 21, 63, 241, 723, 1687, 2169, 4721, 5061, 14163, 15183, 33047, 42489, 99141, 297423, 1137761, 3413283, 7964327, 10239849, 23892981, 71678943]

約数ペア:

[(1, 71678943), (3, 23892981), (7, 10239849), (9, 7964327), (21, 3413283), (63, 1137761), (241, 297423), (723, 99141), (1687, 42489), (2169, 33047), (4721, 15183), (5061, 14163)]