20163219

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{523}}^1$

素因数の和:778

約数の個数: 16

約数和(自身を含む): 27465984

約数和(自身を除く): 7302765

約数列:

[1, 3, 71, 181, 213, 523, 543, 1569, 12851, 37133, 38553, 94663, 111399, 283989, 6721073, 20163219]

約数ペア:

[(1, 20163219), (3, 6721073), (71, 283989), (181, 111399), (213, 94663), (523, 38553), (543, 37133), (1569, 12851)]