18539898

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{237691}}^1$

素因数の和:237709

約数の個数: 16

約数和(自身を含む): 39932256

約数和(自身を除く): 21392358

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 237691, 475382, 713073, 1426146, 3089983, 6179966, 9269949, 18539898]

約数ペア:

[(1, 18539898), (2, 9269949), (3, 6179966), (6, 3089983), (13, 1426146), (26, 713073), (39, 475382), (78, 237691)]