20218325715

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{325813}}^1$

素因数の和:326028

約数の個数: 48

約数和(自身を含む): 40254971328

約数和(自身を除く): 20036645613

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 197, 315, 591, 985, 1379, 1773, 2955, 4137, 6895, 8865, 12411, 20685, 62055, 325813, 977439, 1629065, 2280691, 2932317, 4887195, 6842073, 11403455, 14661585, 20526219, 34210365, 64185161, 102631095, 192555483, 320925805, 449296127, 577666449, 962777415, 1347888381, 2246480635, 2888332245, 4043665143, 6739441905, 20218325715]

約数ペア:

[(1, 20218325715), (3, 6739441905), (5, 4043665143), (7, 2888332245), (9, 2246480635), (15, 1347888381), (21, 962777415), (35, 577666449), (45, 449296127), (63, 320925805), (105, 192555483), (197, 102631095), (315, 64185161), (591, 34210365), (985, 20526219), (1379, 14661585), (1773, 11403455), (2955, 6842073), (4137, 4887195), (6895, 2932317), (8865, 2280691), (12411, 1629065), (20685, 977439), (62055, 325813)]