18626439

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{383}}^1$

素因数の和:471

約数の個数: 32

約数和(自身を含む): 28385280

約数和(自身を除く): 9758841

約数列:

[1, 3, 13, 29, 39, 43, 87, 129, 377, 383, 559, 1131, 1149, 1247, 1677, 3741, 4979, 11107, 14937, 16211, 16469, 33321, 48633, 49407, 144391, 214097, 433173, 477601, 642291, 1432803, 6208813, 18626439]

約数ペア:

[(1, 18626439), (3, 6208813), (13, 1432803), (29, 642291), (39, 477601), (43, 433173), (87, 214097), (129, 144391), (377, 49407), (383, 48633), (559, 33321), (1131, 16469), (1149, 16211), (1247, 14937), (1677, 11107), (3741, 4979)]