21555943

素因数分解:

${\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:334

約数の個数: 16

約数和(自身を含む): 23136256

約数和(自身を除く): 1580313

約数列:

[1, 31, 43, 103, 157, 1333, 3193, 4429, 4867, 6751, 16171, 137299, 209281, 501301, 695353, 21555943]

約数ペア:

[(1, 21555943), (31, 695353), (43, 501301), (103, 209281), (157, 137299), (1333, 16171), (3193, 6751), (4429, 4867)]