20979768

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{51421}}^1$

素因数の和:51447

約数の個数: 32

約数和(自身を含む): 55535760

約数和(自身を除く): 34555992

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408, 51421, 102842, 154263, 205684, 308526, 411368, 617052, 874157, 1234104, 1748314, 2622471, 3496628, 5244942, 6993256, 10489884, 20979768]

約数ペア:

[(1, 20979768), (2, 10489884), (3, 6993256), (4, 5244942), (6, 3496628), (8, 2622471), (12, 1748314), (17, 1234104), (24, 874157), (34, 617052), (51, 411368), (68, 308526), (102, 205684), (136, 154263), (204, 102842), (408, 51421)]