19876671

素因数分解:

$3^5\times {\mathrm{157}}^1\times {\mathrm{521}}^1$

素因数の和:693

約数の個数: 24

約数和(自身を含む): 30021264

約数和(自身を除く): 10144593

約数列:

[1, 3, 9, 27, 81, 157, 243, 471, 521, 1413, 1563, 4239, 4689, 12717, 14067, 38151, 42201, 81797, 126603, 245391, 736173, 2208519, 6625557, 19876671]

約数ペア:

[(1, 19876671), (3, 6625557), (9, 2208519), (27, 736173), (81, 245391), (157, 126603), (243, 81797), (471, 42201), (521, 38151), (1413, 14067), (1563, 12717), (4239, 4689)]