21182216

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{240707}}^1$

素因数の和:240724

約数の個数: 16

約数和(自身を含む): 43327440

約数和(自身を除く): 22145224

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 240707, 481414, 962828, 1925656, 2647777, 5295554, 10591108, 21182216]

約数ペア:

[(1, 21182216), (2, 10591108), (4, 5295554), (8, 2647777), (11, 1925656), (22, 962828), (44, 481414), (88, 240707)]