18828789

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{5569}}^1$

素因数の和:5609

約数の個数: 24

約数和(自身を含む): 30479040

約数和(自身を除く): 11650251

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 483, 1127, 3381, 5569, 16707, 38983, 116949, 128087, 272881, 384261, 818643, 896609, 2689827, 6276263, 18828789]

約数ペア:

[(1, 18828789), (3, 6276263), (7, 2689827), (21, 896609), (23, 818643), (49, 384261), (69, 272881), (147, 128087), (161, 116949), (483, 38983), (1127, 16707), (3381, 5569)]