18719344

素因数分解:

$2^4\times 7^1\times {\mathrm{397}}^1\times {\mathrm{421}}^1$

素因数の和:833

約数の個数: 40

約数和(自身を含む): 41653088

約数和(自身を除く): 22933744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 397, 421, 794, 842, 1588, 1684, 2779, 2947, 3176, 3368, 5558, 5894, 6352, 6736, 11116, 11788, 22232, 23576, 44464, 47152, 167137, 334274, 668548, 1169959, 1337096, 2339918, 2674192, 4679836, 9359672, 18719344]

約数ペア:

[(1, 18719344), (2, 9359672), (4, 4679836), (7, 2674192), (8, 2339918), (14, 1337096), (16, 1169959), (28, 668548), (56, 334274), (112, 167137), (397, 47152), (421, 44464), (794, 23576), (842, 22232), (1588, 11788), (1684, 11116), (2779, 6736), (2947, 6352), (3176, 5894), (3368, 5558)]