21510055

素因数分解:

$5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{1741}}^1$

素因数の和:2106

約数の個数: 16

約数和(自身を含む): 29600064

約数和(自身を除く): 8090009

約数列:

[1, 5, 7, 35, 353, 1741, 1765, 2471, 8705, 12187, 12355, 60935, 614573, 3072865, 4302011, 21510055]

約数ペア:

[(1, 21510055), (5, 4302011), (7, 3072865), (35, 614573), (353, 60935), (1741, 12355), (1765, 12187), (2471, 8705)]