20931897

素因数分解:

$3^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{4391}}^1$

素因数の和:4628

約数の個数: 16

約数和(自身を含む): 32044032

約数和(自身を除く): 11112135

約数列:

[1, 3, 7, 21, 227, 681, 1589, 4391, 4767, 13173, 30737, 92211, 996757, 2990271, 6977299, 20931897]

約数ペア:

[(1, 20931897), (3, 6977299), (7, 2990271), (21, 996757), (227, 92211), (681, 30737), (1589, 13173), (4391, 4767)]