16820601

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{10139}}^1$

素因数の和:10228

約数の個数: 16

約数和(自身を含む): 25958400

約数和(自身を除く): 9137799

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 10139, 30417, 70973, 212919, 800981, 2402943, 5606867, 16820601]

約数ペア:

[(1, 16820601), (3, 5606867), (7, 2402943), (21, 800981), (79, 212919), (237, 70973), (553, 30417), (1659, 10139)]