18667377

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{7177}}^1$

素因数の和:7217

約数の個数: 18

約数和(自身を含む): 28647398

約数和(自身を除く): 9980021

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 7177, 21531, 64593, 122009, 366027, 1098081, 2074153, 6222459, 18667377]

約数ペア:

[(1, 18667377), (3, 6222459), (9, 2074153), (17, 1098081), (51, 366027), (153, 122009), (289, 64593), (867, 21531), (2601, 7177)]