21962990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1487}}^1$

素因数の和:1712

約数の個数: 32

約数和(自身を含む): 45425664

約数和(自身を除く): 23462674

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 211, 422, 1055, 1477, 1487, 2110, 2954, 2974, 7385, 7435, 10409, 14770, 14870, 20818, 52045, 104090, 313757, 627514, 1568785, 2196299, 3137570, 4392598, 10981495, 21962990]

約数ペア:

[(1, 21962990), (2, 10981495), (5, 4392598), (7, 3137570), (10, 2196299), (14, 1568785), (35, 627514), (70, 313757), (211, 104090), (422, 52045), (1055, 20818), (1477, 14870), (1487, 14770), (2110, 10409), (2954, 7435), (2974, 7385)]