19743451

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{601}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 25688544

約数和(自身を除く): 5945093

約数列:

[1, 7, 13, 19, 91, 133, 247, 361, 601, 1729, 2527, 4207, 4693, 7813, 11419, 32851, 54691, 79933, 148447, 216961, 1039129, 1518727, 2820493, 19743451]

約数ペア:

[(1, 19743451), (7, 2820493), (13, 1518727), (19, 1039129), (91, 216961), (133, 148447), (247, 79933), (361, 54691), (601, 32851), (1729, 11419), (2527, 7813), (4207, 4693)]