21328890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64633}}^1$

素因数の和:64654

約数の個数: 32

約数和(自身を含む): 55843776

約数和(自身を除く): 34514886

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330, 64633, 129266, 193899, 323165, 387798, 646330, 710963, 969495, 1421926, 1938990, 2132889, 3554815, 4265778, 7109630, 10664445, 21328890]

約数ペア:

[(1, 21328890), (2, 10664445), (3, 7109630), (5, 4265778), (6, 3554815), (10, 2132889), (11, 1938990), (15, 1421926), (22, 969495), (30, 710963), (33, 646330), (55, 387798), (66, 323165), (110, 193899), (165, 129266), (330, 64633)]