19918755

素因数分解:

$3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5333}}^1$

素因数の和:5427

約数の個数: 24

約数和(自身を含む): 34948368

約数和(自身を除く): 15029613

約数列:

[1, 3, 5, 9, 15, 45, 83, 249, 415, 747, 1245, 3735, 5333, 15999, 26665, 47997, 79995, 239985, 442639, 1327917, 2213195, 3983751, 6639585, 19918755]

約数ペア:

[(1, 19918755), (3, 6639585), (5, 3983751), (9, 2213195), (15, 1327917), (45, 442639), (83, 239985), (249, 79995), (415, 47997), (747, 26665), (1245, 15999), (3735, 5333)]