20003697

素因数分解:

$3^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{2131}}^1$

素因数の和:2293

約数の個数: 24

約数和(自身を含む): 33259200

約数和(自身を除く): 13255503

約数列:

[1, 3, 7, 9, 21, 63, 149, 447, 1043, 1341, 2131, 3129, 6393, 9387, 14917, 19179, 44751, 134253, 317519, 952557, 2222633, 2857671, 6667899, 20003697]

約数ペア:

[(1, 20003697), (3, 6667899), (7, 2857671), (9, 2222633), (21, 952557), (63, 317519), (149, 134253), (447, 44751), (1043, 19179), (1341, 14917), (2131, 9387), (3129, 6393)]