20397784

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{1201}}^1$

素因数の和:1411

約数の個数: 32

約数和(自身を含む): 41973840

約数和(自身を除く): 21576056

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 193, 386, 772, 1201, 1544, 2123, 2402, 4246, 4804, 8492, 9608, 13211, 16984, 26422, 52844, 105688, 231793, 463586, 927172, 1854344, 2549723, 5099446, 10198892, 20397784]

約数ペア:

[(1, 20397784), (2, 10198892), (4, 5099446), (8, 2549723), (11, 1854344), (22, 927172), (44, 463586), (88, 231793), (193, 105688), (386, 52844), (772, 26422), (1201, 16984), (1544, 13211), (2123, 9608), (2402, 8492), (4246, 4804)]