20045247

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{83}}^1\times {\mathrm{223}}^1$

素因数の和:347

約数の個数: 24

約数和(自身を含む): 28675584

約数和(自身を除く): 8630337

約数列:

[1, 3, 19, 57, 83, 223, 249, 361, 669, 1083, 1577, 4237, 4731, 12711, 18509, 29963, 55527, 80503, 89889, 241509, 351671, 1055013, 6681749, 20045247]

約数ペア:

[(1, 20045247), (3, 6681749), (19, 1055013), (57, 351671), (83, 241509), (223, 89889), (249, 80503), (361, 55527), (669, 29963), (1083, 18509), (1577, 12711), (4237, 4731)]