215233209

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{17807}}^1$

素因数の和:17909

約数の個数: 24

約数和(自身を含む): 333365760

約数和(自身を除く): 118132551

約数列:

[1, 3, 9, 17, 51, 79, 153, 237, 711, 1343, 4029, 12087, 17807, 53421, 160263, 302719, 908157, 1406753, 2724471, 4220259, 12660777, 23914801, 71744403, 215233209]

約数ペア:

[(1, 215233209), (3, 71744403), (9, 23914801), (17, 12660777), (51, 4220259), (79, 2724471), (153, 1406753), (237, 908157), (711, 302719), (1343, 160263), (4029, 53421), (12087, 17807)]