28872417

素因数分解:

$3^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{3329}}^1$

素因数の和:3405

約数の個数: 24

約数和(自身を含む): 45554400

約数和(自身を除く): 16681983

約数列:

[1, 3, 7, 21, 49, 59, 147, 177, 413, 1239, 2891, 3329, 8673, 9987, 23303, 69909, 163121, 196411, 489363, 589233, 1374877, 4124631, 9624139, 28872417]

約数ペア:

[(1, 28872417), (3, 9624139), (7, 4124631), (21, 1374877), (49, 589233), (59, 489363), (147, 196411), (177, 163121), (413, 69909), (1239, 23303), (2891, 9987), (3329, 8673)]