19845488

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1307}}^1$

素因数の和:1401

約数の個数: 40

約数和(自身を含む): 42007728

約数和(自身を除く): 22162240

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 73, 104, 146, 208, 292, 584, 949, 1168, 1307, 1898, 2614, 3796, 5228, 7592, 10456, 15184, 16991, 20912, 33982, 67964, 95411, 135928, 190822, 271856, 381644, 763288, 1240343, 1526576, 2480686, 4961372, 9922744, 19845488]

約数ペア:

[(1, 19845488), (2, 9922744), (4, 4961372), (8, 2480686), (13, 1526576), (16, 1240343), (26, 763288), (52, 381644), (73, 271856), (104, 190822), (146, 135928), (208, 95411), (292, 67964), (584, 33982), (949, 20912), (1168, 16991), (1307, 15184), (1898, 10456), (2614, 7592), (3796, 5228)]