21703871

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{3079}}^1$

素因数の和:3158

約数の個数: 16

約数和(自身を含む): 26611200

約数和(自身を除く): 4907329

約数列:

[1, 7, 19, 53, 133, 371, 1007, 3079, 7049, 21553, 58501, 163187, 409507, 1142309, 3100553, 21703871]

約数ペア:

[(1, 21703871), (7, 3100553), (19, 1142309), (53, 409507), (133, 163187), (371, 58501), (1007, 21553), (3079, 7049)]