17995655208979

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{10613}}^1\times {\mathrm{13903}}^1$

素因数の和:24680

約数の個数: 48

約数和(自身を含む): 22207395386880

約数和(自身を除く): 4211740177901

約数列:

[1, 7, 19, 49, 131, 133, 917, 931, 2489, 6419, 10613, 13903, 17423, 74291, 97321, 121961, 201647, 264157, 520037, 681247, 1390303, 1411529, 1821293, 1849099, 9732121, 9880703, 12749051, 12943693, 26415757, 34604567, 68124847, 89243357, 147552539, 184910299, 242231969, 1032867773, 1294372093, 1695623783, 2803498241, 7230074411, 19329382609, 19624487687, 135305678263, 137371413809, 367258269571, 947139747841, 2570807886997, 17995655208979]

約数ペア:

[(1, 17995655208979), (7, 2570807886997), (19, 947139747841), (49, 367258269571), (131, 137371413809), (133, 135305678263), (917, 19624487687), (931, 19329382609), (2489, 7230074411), (6419, 2803498241), (10613, 1695623783), (13903, 1294372093), (17423, 1032867773), (74291, 242231969), (97321, 184910299), (121961, 147552539), (201647, 89243357), (264157, 68124847), (520037, 34604567), (681247, 26415757), (1390303, 12943693), (1411529, 12749051), (1821293, 9880703), (1849099, 9732121)]