17818941

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:154

約数の個数: 64

約数和(自身を含む): 31518720

約数和(自身を除く): 13699779

約数列:

[1, 3, 7, 17, 19, 21, 37, 51, 57, 71, 111, 119, 133, 213, 259, 323, 357, 399, 497, 629, 703, 777, 969, 1207, 1349, 1491, 1887, 2109, 2261, 2627, 3621, 4047, 4403, 4921, 6783, 7881, 8449, 9443, 11951, 13209, 14763, 18389, 22933, 25347, 28329, 35853, 44659, 49913, 55167, 68799, 83657, 133977, 149739, 160531, 250971, 312613, 349391, 481593, 848521, 937839, 1048173, 2545563, 5939647, 17818941]

約数ペア:

[(1, 17818941), (3, 5939647), (7, 2545563), (17, 1048173), (19, 937839), (21, 848521), (37, 481593), (51, 349391), (57, 312613), (71, 250971), (111, 160531), (119, 149739), (133, 133977), (213, 83657), (259, 68799), (323, 55167), (357, 49913), (399, 44659), (497, 35853), (629, 28329), (703, 25347), (777, 22933), (969, 18389), (1207, 14763), (1349, 13209), (1491, 11951), (1887, 9443), (2109, 8449), (2261, 7881), (2627, 6783), (3621, 4921), (4047, 4403)]