1218321

素因数分解:

$3^4\times {\mathrm{13}}^2\times {\mathrm{89}}^1$

素因数の和:127

約数の個数: 30

約数和(自身を含む): 1992870

約数和(自身を除く): 774549

約数列:

[1, 3, 9, 13, 27, 39, 81, 89, 117, 169, 267, 351, 507, 801, 1053, 1157, 1521, 2403, 3471, 4563, 7209, 10413, 13689, 15041, 31239, 45123, 93717, 135369, 406107, 1218321]

約数ペア:

[(1, 1218321), (3, 406107), (9, 135369), (13, 93717), (27, 45123), (39, 31239), (81, 15041), (89, 13689), (117, 10413), (169, 7209), (267, 4563), (351, 3471), (507, 2403), (801, 1521), (1053, 1157)]