21260690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{557}}^1$

素因数の和:922

約数の個数: 32

約数和(自身を含む): 41943744

約数和(自身を除く): 20683054

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 347, 557, 694, 1114, 1735, 2785, 3470, 3817, 5570, 6127, 7634, 12254, 19085, 30635, 38170, 61270, 193279, 386558, 966395, 1932790, 2126069, 4252138, 10630345, 21260690]

約数ペア:

[(1, 21260690), (2, 10630345), (5, 4252138), (10, 2126069), (11, 1932790), (22, 966395), (55, 386558), (110, 193279), (347, 61270), (557, 38170), (694, 30635), (1114, 19085), (1735, 12254), (2785, 7634), (3470, 6127), (3817, 5570)]