20173086801

素因数分解:

$3^3\times 7^2\times {\mathrm{61}}^1\times {\mathrm{249967}}^1$

素因数の和:250051

約数の個数: 48

約数和(自身を含む): 35335476480

約数和(自身を除く): 15162389679

約数列:

[1, 3, 7, 9, 21, 27, 49, 61, 63, 147, 183, 189, 427, 441, 549, 1281, 1323, 1647, 2989, 3843, 8967, 11529, 26901, 80703, 249967, 749901, 1749769, 2249703, 5249307, 6749109, 12248383, 15247987, 15747921, 36745149, 45743961, 47243763, 106735909, 110235447, 137231883, 320207727, 330706341, 411695649, 747151363, 960623181, 2241454089, 2881869543, 6724362267, 20173086801]

約数ペア:

[(1, 20173086801), (3, 6724362267), (7, 2881869543), (9, 2241454089), (21, 960623181), (27, 747151363), (49, 411695649), (61, 330706341), (63, 320207727), (147, 137231883), (183, 110235447), (189, 106735909), (427, 47243763), (441, 45743961), (549, 36745149), (1281, 15747921), (1323, 15247987), (1647, 12248383), (2989, 6749109), (3843, 5249307), (8967, 2249703), (11529, 1749769), (26901, 749901), (80703, 249967)]