20216657979

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1009}}^1\times {\mathrm{7757}}^1$

素因数の和:8820

約数の個数: 48

約数和(自身を含む): 34225813440

約数和(自身を除く): 14009155461

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 1009, 2583, 3027, 7063, 7757, 9081, 21189, 23271, 41369, 54299, 63567, 69813, 124107, 162897, 289583, 318037, 372321, 488691, 868749, 954111, 2226259, 2606247, 2862333, 6678777, 7826813, 20036331, 23480439, 54787691, 70441317, 164363073, 320899333, 493089219, 962697999, 2246295331, 2888093997, 6738885993, 20216657979]

約数ペア:

[(1, 20216657979), (3, 6738885993), (7, 2888093997), (9, 2246295331), (21, 962697999), (41, 493089219), (63, 320899333), (123, 164363073), (287, 70441317), (369, 54787691), (861, 23480439), (1009, 20036331), (2583, 7826813), (3027, 6678777), (7063, 2862333), (7757, 2606247), (9081, 2226259), (21189, 954111), (23271, 868749), (41369, 488691), (54299, 372321), (63567, 318037), (69813, 289583), (124107, 162897)]