20509908

素因数分解:

$2^2\times 3^1\times {\mathrm{61}}^1\times {\mathrm{28019}}^1$

素因数の和:28087

約数の個数: 24

約数和(自身を含む): 48642720

約数和(自身を除く): 28132812

約数列:

[1, 2, 3, 4, 6, 12, 61, 122, 183, 244, 366, 732, 28019, 56038, 84057, 112076, 168114, 336228, 1709159, 3418318, 5127477, 6836636, 10254954, 20509908]

約数ペア:

[(1, 20509908), (2, 10254954), (3, 6836636), (4, 5127477), (6, 3418318), (12, 1709159), (61, 336228), (122, 168114), (183, 112076), (244, 84057), (366, 56038), (732, 28019)]