28330281

素因数分解:

$3^2\times 7^2\times {\mathrm{227}}^1\times {\mathrm{283}}^1$

素因数の和:530

約数の個数: 36

約数和(自身を含む): 47981232

約数和(自身を除く): 19650951

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 227, 283, 441, 681, 849, 1589, 1981, 2043, 2547, 4767, 5943, 11123, 13867, 14301, 17829, 33369, 41601, 64241, 100107, 124803, 192723, 449687, 578169, 1349061, 3147809, 4047183, 9443427, 28330281]

約数ペア:

[(1, 28330281), (3, 9443427), (7, 4047183), (9, 3147809), (21, 1349061), (49, 578169), (63, 449687), (147, 192723), (227, 124803), (283, 100107), (441, 64241), (681, 41601), (849, 33369), (1589, 17829), (1981, 14301), (2043, 13867), (2547, 11123), (4767, 5943)]