217804961

素因数分解:

${\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{449}}^1$

素因数の和:701

約数の個数: 24

約数和(自身を含む): 253764000

約数和(自身を除く): 35959039

約数列:

[1, 11, 19, 121, 209, 211, 449, 2299, 2321, 4009, 4939, 8531, 25531, 44099, 54329, 93841, 94739, 485089, 1032251, 1042129, 1800041, 11463419, 19800451, 217804961]

約数ペア:

[(1, 217804961), (11, 19800451), (19, 11463419), (121, 1800041), (209, 1042129), (211, 1032251), (449, 485089), (2299, 94739), (2321, 93841), (4009, 54329), (4939, 44099), (8531, 25531)]