18519844

素因数分解:

$2^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1549}}^1$

素因数の和:1628

約数の個数: 36

約数和(自身を含む): 38343900

約数和(自身を除く): 19824056

約数列:

[1, 2, 4, 7, 14, 28, 49, 61, 98, 122, 196, 244, 427, 854, 1549, 1708, 2989, 3098, 5978, 6196, 10843, 11956, 21686, 43372, 75901, 94489, 151802, 188978, 303604, 377956, 661423, 1322846, 2645692, 4629961, 9259922, 18519844]

約数ペア:

[(1, 18519844), (2, 9259922), (4, 4629961), (7, 2645692), (14, 1322846), (28, 661423), (49, 377956), (61, 303604), (98, 188978), (122, 151802), (196, 94489), (244, 75901), (427, 43372), (854, 21686), (1549, 11956), (1708, 10843), (2989, 6196), (3098, 5978)]