21820274

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:378

約数の個数: 32

約数和(自身を含む): 38438400

約数和(自身を除く): 16618126

約数列:

[1, 2, 7, 14, 79, 109, 158, 181, 218, 362, 553, 763, 1106, 1267, 1526, 2534, 8611, 14299, 17222, 19729, 28598, 39458, 60277, 100093, 120554, 138103, 200186, 276206, 1558591, 3117182, 10910137, 21820274]

約数ペア:

[(1, 21820274), (2, 10910137), (7, 3117182), (14, 1558591), (79, 276206), (109, 200186), (158, 138103), (181, 120554), (218, 100093), (362, 60277), (553, 39458), (763, 28598), (1106, 19729), (1267, 17222), (1526, 14299), (2534, 8611)]