19717492067

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{163}}^1\times {\mathrm{971}}^1$

素因数の和:1228

約数の個数: 48

約数和(自身を含む): 25120150272

約数和(自身を除く): 5402658205

約数列:

[1, 7, 13, 37, 91, 163, 259, 481, 971, 1141, 1369, 2119, 3367, 6031, 6797, 9583, 12623, 14833, 17797, 35927, 42217, 78403, 88361, 124579, 158273, 223147, 251489, 467051, 548821, 1107911, 1329299, 1562029, 2057549, 2900911, 3269357, 5856101, 9305093, 14402843, 17280887, 20306377, 40992707, 76129313, 120966209, 216675737, 532905191, 1516730159, 2816784581, 19717492067]

約数ペア:

[(1, 19717492067), (7, 2816784581), (13, 1516730159), (37, 532905191), (91, 216675737), (163, 120966209), (259, 76129313), (481, 40992707), (971, 20306377), (1141, 17280887), (1369, 14402843), (2119, 9305093), (3367, 5856101), (6031, 3269357), (6797, 2900911), (9583, 2057549), (12623, 1562029), (14833, 1329299), (17797, 1107911), (35927, 548821), (42217, 467051), (78403, 251489), (88361, 223147), (124579, 158273)]