21888112

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{80471}}^1$

素因数の和:80496

約数の個数: 20

約数和(自身を含む): 44903376

約数和(自身を除く): 23015264

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 80471, 160942, 321884, 643768, 1287536, 1368007, 2736014, 5472028, 10944056, 21888112]

約数ペア:

[(1, 21888112), (2, 10944056), (4, 5472028), (8, 2736014), (16, 1368007), (17, 1287536), (34, 643768), (68, 321884), (136, 160942), (272, 80471)]