18844784

素因数分解:

$2^4\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1489}}^1$

素因数の和:1617

約数の個数: 40

約数和(自身を含む): 42125280

約数和(自身を除く): 23280496

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 113, 226, 452, 791, 904, 1489, 1582, 1808, 2978, 3164, 5956, 6328, 10423, 11912, 12656, 20846, 23824, 41692, 83384, 166768, 168257, 336514, 673028, 1177799, 1346056, 2355598, 2692112, 4711196, 9422392, 18844784]

約数ペア:

[(1, 18844784), (2, 9422392), (4, 4711196), (7, 2692112), (8, 2355598), (14, 1346056), (16, 1177799), (28, 673028), (56, 336514), (112, 168257), (113, 166768), (226, 83384), (452, 41692), (791, 23824), (904, 20846), (1489, 12656), (1582, 11912), (1808, 10423), (2978, 6328), (3164, 5956)]