21728666

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{577}}^1\times {\mathrm{991}}^1$

素因数の和:1589

約数の個数: 16

約数和(自身を含む): 34402560

約数和(自身を除く): 12673894

約数列:

[1, 2, 19, 38, 577, 991, 1154, 1982, 10963, 18829, 21926, 37658, 571807, 1143614, 10864333, 21728666]

約数ペア:

[(1, 21728666), (2, 10864333), (19, 1143614), (38, 571807), (577, 37658), (991, 21926), (1154, 18829), (1982, 10963)]