18813808

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3119}}^1$

素因数の和:3169

約数の個数: 40

約数和(自身を含む): 40622400

約数和(自身を除く): 21808592

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 52, 58, 104, 116, 208, 232, 377, 464, 754, 1508, 3016, 3119, 6032, 6238, 12476, 24952, 40547, 49904, 81094, 90451, 162188, 180902, 324376, 361804, 648752, 723608, 1175863, 1447216, 2351726, 4703452, 9406904, 18813808]

約数ペア:

[(1, 18813808), (2, 9406904), (4, 4703452), (8, 2351726), (13, 1447216), (16, 1175863), (26, 723608), (29, 648752), (52, 361804), (58, 324376), (104, 180902), (116, 162188), (208, 90451), (232, 81094), (377, 49904), (464, 40547), (754, 24952), (1508, 12476), (3016, 6238), (3119, 6032)]