638996961

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{38261}}^1$

素因数の和:38576

約数の個数: 16

約数和(自身を含む): 899922240

約数和(自身を除く): 260925279

約数列:

[1, 3, 19, 57, 293, 879, 5567, 16701, 38261, 114783, 726959, 2180877, 11210473, 33631419, 212998987, 638996961]

約数ペア:

[(1, 638996961), (3, 212998987), (19, 33631419), (57, 11210473), (293, 2180877), (879, 726959), (5567, 114783), (16701, 38261)]