18616377

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{653}}^1$

素因数の和:729

約数の個数: 32

約数和(自身を含む): 29006208

約数和(自身を除く): 10389831

約数列:

[1, 3, 13, 17, 39, 43, 51, 129, 221, 559, 653, 663, 731, 1677, 1959, 2193, 8489, 9503, 11101, 25467, 28079, 28509, 33303, 84237, 144313, 365027, 432939, 477343, 1095081, 1432029, 6205459, 18616377]

約数ペア:

[(1, 18616377), (3, 6205459), (13, 1432029), (17, 1095081), (39, 477343), (43, 432939), (51, 365027), (129, 144313), (221, 84237), (559, 33303), (653, 28509), (663, 28079), (731, 25467), (1677, 11101), (1959, 9503), (2193, 8489)]