19165972

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{7691}}^1$

素因数の和:7791

約数の個数: 24

約数和(自身を含む): 38767680

約数和(自身を除く): 19601708

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 623, 1246, 2492, 7691, 15382, 30764, 53837, 107674, 215348, 684499, 1368998, 2737996, 4791493, 9582986, 19165972]

約数ペア:

[(1, 19165972), (2, 9582986), (4, 4791493), (7, 2737996), (14, 1368998), (28, 684499), (89, 215348), (178, 107674), (356, 53837), (623, 30764), (1246, 15382), (2492, 7691)]