11715921

素因数分解:

$3^4\times 7^1\times {\mathrm{20663}}^1$

素因数の和:20682

約数の個数: 20

約数和(自身を含む): 20002752

約数和(自身を除く): 8286831

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 20663, 61989, 144641, 185967, 433923, 557901, 1301769, 1673703, 3905307, 11715921]

約数ペア:

[(1, 11715921), (3, 3905307), (7, 1673703), (9, 1301769), (21, 557901), (27, 433923), (63, 185967), (81, 144641), (189, 61989), (567, 20663)]