18258939

素因数分解:

$3^4\times {\mathrm{173}}^1\times {\mathrm{1303}}^1$

素因数の和:1488

約数の個数: 20

約数和(自身を含む): 27454416

約数和(自身を除く): 9195477

約数列:

[1, 3, 9, 27, 81, 173, 519, 1303, 1557, 3909, 4671, 11727, 14013, 35181, 105543, 225419, 676257, 2028771, 6086313, 18258939]

約数ペア:

[(1, 18258939), (3, 6086313), (9, 2028771), (27, 676257), (81, 225419), (173, 105543), (519, 35181), (1303, 14013), (1557, 11727), (3909, 4671)]