12031821

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{1669}}^1$

素因数の和:1770

約数の個数: 20

約数和(自身を含む): 18186300

約数和(自身を除く): 6154479

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 1669, 2403, 5007, 7209, 15021, 45063, 135189, 148541, 445623, 1336869, 4010607, 12031821]

約数ペア:

[(1, 12031821), (3, 4010607), (9, 1336869), (27, 445623), (81, 148541), (89, 135189), (267, 45063), (801, 15021), (1669, 7209), (2403, 5007)]