20958940093

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{5237}}^1$

素因数の和:5486

約数の個数: 48

約数和(自身を含む): 27606355200

約数和(自身を除く): 6647415107

約数列:

[1, 7, 13, 17, 91, 119, 169, 199, 221, 1183, 1393, 1547, 2587, 2873, 3383, 5237, 18109, 20111, 23681, 33631, 36659, 43979, 68081, 89029, 235417, 307853, 476567, 571727, 623203, 885053, 1042163, 1157377, 4002089, 6195371, 7295141, 8101639, 13548119, 15045901, 17716771, 94836833, 105321307, 124017397, 176125547, 230318023, 1232878829, 1612226161, 2994134299, 20958940093]

約数ペア:

[(1, 20958940093), (7, 2994134299), (13, 1612226161), (17, 1232878829), (91, 230318023), (119, 176125547), (169, 124017397), (199, 105321307), (221, 94836833), (1183, 17716771), (1393, 15045901), (1547, 13548119), (2587, 8101639), (2873, 7295141), (3383, 6195371), (5237, 4002089), (18109, 1157377), (20111, 1042163), (23681, 885053), (33631, 623203), (36659, 571727), (43979, 476567), (68081, 307853), (89029, 235417)]