18861813

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1511}}^1$

素因数の和:1609

約数の個数: 24

約数和(自身を含む): 29090880

約数和(自身を除く): 10229067

約数列:

[1, 3, 9, 19, 57, 73, 171, 219, 657, 1387, 1511, 4161, 4533, 12483, 13599, 28709, 86127, 110303, 258381, 330909, 992727, 2095757, 6287271, 18861813]

約数ペア:

[(1, 18861813), (3, 6287271), (9, 2095757), (19, 992727), (57, 330909), (73, 258381), (171, 110303), (219, 86127), (657, 28709), (1387, 13599), (1511, 12483), (4161, 4533)]