21945219

素因数分解:

$3^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1\times {\mathrm{241}}^1$

素因数の和:610

約数の個数: 16

約数和(自身を含む): 29736960

約数和(自身を除く): 7791741

約数列:

[1, 3, 127, 239, 241, 381, 717, 723, 30353, 30607, 57599, 91059, 91821, 172797, 7315073, 21945219]

約数ペア:

[(1, 21945219), (3, 7315073), (127, 172797), (239, 91821), (241, 91059), (381, 57599), (717, 30607), (723, 30353)]