15147921

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:309

約数の個数: 24

約数和(自身を含む): 21726144

約数和(自身を除く): 6578223

約数列:

[1, 3, 19, 57, 71, 197, 213, 361, 591, 1083, 1349, 3743, 4047, 11229, 13987, 25631, 41961, 71117, 76893, 213351, 265753, 797259, 5049307, 15147921]

約数ペア:

[(1, 15147921), (3, 5049307), (19, 797259), (57, 265753), (71, 213351), (197, 76893), (213, 71117), (361, 41961), (591, 25631), (1083, 13987), (1349, 11229), (3743, 4047)]