18778492

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{1709}}^1$

素因数の和:1821

約数の個数: 24

約数和(自身を含む): 34186320

約数和(自身を除く): 15407828

約数列:

[1, 2, 4, 41, 67, 82, 134, 164, 268, 1709, 2747, 3418, 5494, 6836, 10988, 70069, 114503, 140138, 229006, 280276, 458012, 4694623, 9389246, 18778492]

約数ペア:

[(1, 18778492), (2, 9389246), (4, 4694623), (41, 458012), (67, 280276), (82, 229006), (134, 140138), (164, 114503), (268, 70069), (1709, 10988), (2747, 6836), (3418, 5494)]