21704216

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{87517}}^1$

素因数の和:87554

約数の個数: 16

約数和(自身を含む): 42008640

約数和(自身を除く): 20304424

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 87517, 175034, 350068, 700136, 2713027, 5426054, 10852108, 21704216]

約数ペア:

[(1, 21704216), (2, 10852108), (4, 5426054), (8, 2713027), (31, 700136), (62, 350068), (124, 175034), (248, 87517)]