21777867

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{3847}}^1$

素因数の和:3907

約数の個数: 24

約数和(自身を含む): 34216416

約数和(自身を除く): 12438549

約数列:

[1, 3, 9, 17, 37, 51, 111, 153, 333, 629, 1887, 3847, 5661, 11541, 34623, 65399, 142339, 196197, 427017, 588591, 1281051, 2419763, 7259289, 21777867]

約数ペア:

[(1, 21777867), (3, 7259289), (9, 2419763), (17, 1281051), (37, 588591), (51, 427017), (111, 196197), (153, 142339), (333, 65399), (629, 34623), (1887, 11541), (3847, 5661)]