21471121

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{7019}}^1$

素因数の和:7068

約数の個数: 16

約数和(自身を含む): 26956800

約数和(自身を除く): 5485679

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 7019, 49133, 133361, 161437, 933527, 1130059, 3067303, 21471121]

約数ペア:

[(1, 21471121), (7, 3067303), (19, 1130059), (23, 933527), (133, 161437), (161, 133361), (437, 49133), (3059, 7019)]