28233387

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{11491}}^1$

素因数の和:11520

約数の個数: 32

約数和(自身を含む): 51484160

約数和(自身を除く): 23250773

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 11491, 34473, 80437, 103419, 149383, 241311, 310257, 448149, 723933, 1045681, 1344447, 2171799, 3137043, 4033341, 9411129, 28233387]

約数ペア:

[(1, 28233387), (3, 9411129), (7, 4033341), (9, 3137043), (13, 2171799), (21, 1344447), (27, 1045681), (39, 723933), (63, 448149), (91, 310257), (117, 241311), (189, 149383), (273, 103419), (351, 80437), (819, 34473), (2457, 11491)]