20975468

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 41395200

約数和(自身を除く): 20419732

約数列:

[1, 2, 4, 19, 29, 31, 38, 58, 62, 76, 116, 124, 307, 551, 589, 614, 899, 1102, 1178, 1228, 1798, 2204, 2356, 3596, 5833, 8903, 9517, 11666, 17081, 17806, 19034, 23332, 34162, 35612, 38068, 68324, 169157, 180823, 275993, 338314, 361646, 551986, 676628, 723292, 1103972, 5243867, 10487734, 20975468]

約数ペア:

[(1, 20975468), (2, 10487734), (4, 5243867), (19, 1103972), (29, 723292), (31, 676628), (38, 551986), (58, 361646), (62, 338314), (76, 275993), (116, 180823), (124, 169157), (307, 68324), (551, 38068), (589, 35612), (614, 34162), (899, 23332), (1102, 19034), (1178, 17806), (1228, 17081), (1798, 11666), (2204, 9517), (2356, 8903), (3596, 5833)]