21722991

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{2713}}^1$

素因数の和:2890

約数の個数: 16

約数和(自身を含む): 30874464

約数和(自身を除く): 9151473

約数列:

[1, 3, 17, 51, 157, 471, 2669, 2713, 8007, 8139, 46121, 138363, 425941, 1277823, 7240997, 21722991]

約数ペア:

[(1, 21722991), (3, 7240997), (17, 1277823), (51, 425941), (157, 138363), (471, 46121), (2669, 8139), (2713, 8007)]