2180090878

素因数分解:

$2^1\times 7^1\times {\mathrm{15973}}^1\times {\mathrm{9749}}^1$

素因数の和:25731

約数の個数: 16

約数和(自身を含む): 3737916000

約数和(自身を除く): 1557825122

約数列:

[1, 2, 7, 14, 9749, 15973, 19498, 31946, 68243, 111811, 136486, 223622, 155720777, 311441554, 1090045439, 2180090878]

約数ペア:

[(1, 2180090878), (2, 1090045439), (7, 311441554), (14, 155720777), (9749, 223622), (15973, 136486), (19498, 111811), (31946, 68243)]