21954004

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{499}}^1\times {\mathrm{647}}^1$

素因数の和:1167

約数の個数: 24

約数和(自身を含む): 40824000

約数和(自身を除く): 18869996

約数列:

[1, 2, 4, 17, 34, 68, 499, 647, 998, 1294, 1996, 2588, 8483, 10999, 16966, 21998, 33932, 43996, 322853, 645706, 1291412, 5488501, 10977002, 21954004]

約数ペア:

[(1, 21954004), (2, 10977002), (4, 5488501), (17, 1291412), (34, 645706), (68, 322853), (499, 43996), (647, 33932), (998, 21998), (1294, 16966), (1996, 10999), (2588, 8483)]