19301776

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1307}}^1$

素因数の和:1399

約数の個数: 40

約数和(自身を含む): 40872384

約数和(自身を除く): 21570608

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 71, 104, 142, 208, 284, 568, 923, 1136, 1307, 1846, 2614, 3692, 5228, 7384, 10456, 14768, 16991, 20912, 33982, 67964, 92797, 135928, 185594, 271856, 371188, 742376, 1206361, 1484752, 2412722, 4825444, 9650888, 19301776]

約数ペア:

[(1, 19301776), (2, 9650888), (4, 4825444), (8, 2412722), (13, 1484752), (16, 1206361), (26, 742376), (52, 371188), (71, 271856), (104, 185594), (142, 135928), (208, 92797), (284, 67964), (568, 33982), (923, 20912), (1136, 16991), (1307, 14768), (1846, 10456), (2614, 7384), (3692, 5228)]