18785312

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6451}}^1$

素因数の和:6481

約数の個数: 48

約数和(自身を含む): 45525312

約数和(自身を除く): 26740000

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 6451, 12902, 25804, 45157, 51608, 83863, 90314, 103216, 167726, 180628, 206432, 335452, 361256, 587041, 670904, 722512, 1174082, 1341808, 1445024, 2348164, 2683616, 4696328, 9392656, 18785312]

約数ペア:

[(1, 18785312), (2, 9392656), (4, 4696328), (7, 2683616), (8, 2348164), (13, 1445024), (14, 1341808), (16, 1174082), (26, 722512), (28, 670904), (32, 587041), (52, 361256), (56, 335452), (91, 206432), (104, 180628), (112, 167726), (182, 103216), (208, 90314), (224, 83863), (364, 51608), (416, 45157), (728, 25804), (1456, 12902), (2912, 6451)]