20309123

素因数分解:

${\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:394

約数の個数: 16

約数和(自身を含む): 21897216

約数和(自身を除く): 1588093

約数列:

[1, 31, 47, 53, 263, 1457, 1643, 2491, 8153, 12361, 13939, 77221, 383191, 432109, 655133, 20309123]

約数ペア:

[(1, 20309123), (31, 655133), (47, 432109), (53, 383191), (263, 77221), (1457, 13939), (1643, 12361), (2491, 8153)]