21936621

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{54979}}^1$

素因数の和:55008

約数の個数: 16

約数和(自身を含む): 35187200

約数和(自身を除く): 13250579

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 54979, 164937, 384853, 1044601, 1154559, 3133803, 7312207, 21936621]

約数ペア:

[(1, 21936621), (3, 7312207), (7, 3133803), (19, 1154559), (21, 1044601), (57, 384853), (133, 164937), (399, 54979)]