21721754

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1\times {\mathrm{1567}}^1$

素因数の和:1837

約数の個数: 16

約数和(自身を含む): 33868800

約数和(自身を除く): 12147046

約数列:

[1, 2, 29, 58, 239, 478, 1567, 3134, 6931, 13862, 45443, 90886, 374513, 749026, 10860877, 21721754]

約数ペア:

[(1, 21721754), (2, 10860877), (29, 749026), (58, 374513), (239, 90886), (478, 45443), (1567, 13862), (3134, 6931)]