19996964

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{22621}}^1$

素因数の和:22655

約数の個数: 24

約数和(自身を含む): 39905208

約数和(自身を除く): 19908244

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 442, 884, 22621, 45242, 90484, 294073, 384557, 588146, 769114, 1176292, 1538228, 4999241, 9998482, 19996964]

約数ペア:

[(1, 19996964), (2, 9998482), (4, 4999241), (13, 1538228), (17, 1176292), (26, 769114), (34, 588146), (52, 384557), (68, 294073), (221, 90484), (442, 45242), (884, 22621)]