19702748

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{563}}^1\times {\mathrm{673}}^1$

素因数の和:1253

約数の個数: 24

約数和(自身を含む): 37253328

約数和(自身を除く): 17550580

約数列:

[1, 2, 4, 13, 26, 52, 563, 673, 1126, 1346, 2252, 2692, 7319, 8749, 14638, 17498, 29276, 34996, 378899, 757798, 1515596, 4925687, 9851374, 19702748]

約数ペア:

[(1, 19702748), (2, 9851374), (4, 4925687), (13, 1515596), (26, 757798), (52, 378899), (563, 34996), (673, 29276), (1126, 17498), (1346, 14638), (2252, 8749), (2692, 7319)]