19976355

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{21139}}^1$

素因数の和:21160

約数の個数: 32

約数和(自身を含む): 40588800

約数和(自身を除く): 20612445

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 21139, 63417, 105695, 147973, 190251, 317085, 443919, 570753, 739865, 951255, 1331757, 2219595, 2853765, 3995271, 6658785, 19976355]

約数ペア:

[(1, 19976355), (3, 6658785), (5, 3995271), (7, 2853765), (9, 2219595), (15, 1331757), (21, 951255), (27, 739865), (35, 570753), (45, 443919), (63, 317085), (105, 190251), (135, 147973), (189, 105695), (315, 63417), (945, 21139)]