20189818

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{4391}}^1$

素因数の和:4434

約数の個数: 24

約数和(自身を含む): 35048160

約数和(自身を除く): 14858342

約数列:

[1, 2, 11, 19, 22, 38, 121, 209, 242, 418, 2299, 4391, 4598, 8782, 48301, 83429, 96602, 166858, 531311, 917719, 1062622, 1835438, 10094909, 20189818]

約数ペア:

[(1, 20189818), (2, 10094909), (11, 1835438), (19, 1062622), (22, 917719), (38, 531311), (121, 166858), (209, 96602), (242, 83429), (418, 48301), (2299, 8782), (4391, 4598)]