20508979503

素因数分解:

$3^1\times {\mathrm{17}}^3\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{599}}^1$

素因数の和:777

約数の個数: 64

約数和(自身を含む): 30668544000

約数和(自身を除く): 10159564497

約数列:

[1, 3, 17, 23, 51, 69, 101, 289, 303, 391, 599, 867, 1173, 1717, 1797, 2323, 4913, 5151, 6647, 6969, 10183, 13777, 14739, 19941, 29189, 30549, 39491, 41331, 60499, 87567, 112999, 118473, 173111, 181497, 234209, 338997, 496213, 519333, 671347, 702627, 1028483, 1391477, 1488639, 2014041, 2942887, 3085449, 3981553, 4174431, 8828661, 11412899, 11944659, 17484211, 23655109, 34238697, 52452633, 67686401, 70965327, 203059203, 297231587, 402136853, 891694761, 1206410559, 6836326501, 20508979503]

約数ペア:

[(1, 20508979503), (3, 6836326501), (17, 1206410559), (23, 891694761), (51, 402136853), (69, 297231587), (101, 203059203), (289, 70965327), (303, 67686401), (391, 52452633), (599, 34238697), (867, 23655109), (1173, 17484211), (1717, 11944659), (1797, 11412899), (2323, 8828661), (4913, 4174431), (5151, 3981553), (6647, 3085449), (6969, 2942887), (10183, 2014041), (13777, 1488639), (14739, 1391477), (19941, 1028483), (29189, 702627), (30549, 671347), (39491, 519333), (41331, 496213), (60499, 338997), (87567, 234209), (112999, 181497), (118473, 173111)]