20996870416

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{30518707}}^1$

素因数の和:30518758

約数の個数: 20

約数和(自身を含む): 41627517712

約数和(自身を除く): 20630647296

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 30518707, 61037414, 122074828, 244149656, 488299312, 1312304401, 2624608802, 5249217604, 10498435208, 20996870416]

約数ペア:

[(1, 20996870416), (2, 10498435208), (4, 5249217604), (8, 2624608802), (16, 1312304401), (43, 488299312), (86, 244149656), (172, 122074828), (344, 61037414), (688, 30518707)]