20487871438

素因数分解:

$2^1\times {\mathrm{107}}^1\times {\mathrm{557}}^1\times {\mathrm{171881}}^1$

素因数の和:172547

約数の個数: 16

約数和(自身を含む): 31074890544

約数和(自身を除く): 10587019106

約数列:

[1, 2, 107, 214, 557, 1114, 59599, 119198, 171881, 343762, 18391267, 36782534, 95737717, 191475434, 10243935719, 20487871438]

約数ペア:

[(1, 20487871438), (2, 10243935719), (107, 191475434), (214, 95737717), (557, 36782534), (1114, 18391267), (59599, 343762), (119198, 171881)]