20739802581

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{519131}}^1$

素因数の和:519353

約数の個数: 24

約数和(自身を含む): 31422021696

約数和(自身を除く): 10682219115

約数列:

[1, 3, 9, 23, 69, 193, 207, 579, 1737, 4439, 13317, 39951, 519131, 1557393, 4672179, 11940013, 35820039, 100192283, 107460117, 300576849, 901730547, 2304422509, 6913267527, 20739802581]

約数ペア:

[(1, 20739802581), (3, 6913267527), (9, 2304422509), (23, 901730547), (69, 300576849), (193, 107460117), (207, 100192283), (579, 35820039), (1737, 11940013), (4439, 4672179), (13317, 1557393), (39951, 519131)]