21178314

素因数分解:

$2^1\times 3^3\times {\mathrm{173}}^1\times {\mathrm{2267}}^1$

素因数の和:2451

約数の個数: 32

約数和(自身を含む): 47355840

約数和(自身を除く): 26177526

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 173, 346, 519, 1038, 1557, 2267, 3114, 4534, 4671, 6801, 9342, 13602, 20403, 40806, 61209, 122418, 392191, 784382, 1176573, 2353146, 3529719, 7059438, 10589157, 21178314]

約数ペア:

[(1, 21178314), (2, 10589157), (3, 7059438), (6, 3529719), (9, 2353146), (18, 1176573), (27, 784382), (54, 392191), (173, 122418), (346, 61209), (519, 40806), (1038, 20403), (1557, 13602), (2267, 9342), (3114, 6801), (4534, 4671)]