19480643

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{593}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 25347168

約数和(自身を除く): 5866525

約数列:

[1, 7, 13, 19, 91, 133, 247, 361, 593, 1729, 2527, 4151, 4693, 7709, 11267, 32851, 53963, 78869, 146471, 214073, 1025297, 1498511, 2782949, 19480643]

約数ペア:

[(1, 19480643), (7, 2782949), (13, 1498511), (19, 1025297), (91, 214073), (133, 146471), (247, 78869), (361, 53963), (593, 32851), (1729, 11267), (2527, 7709), (4151, 4693)]