21533421

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{78877}}^1$

素因数の和:78900

約数の個数: 16

約数和(自身を含む): 35337344

約数和(自身を除く): 13803923

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 78877, 236631, 552139, 1025401, 1656417, 3076203, 7177807, 21533421]

約数ペア:

[(1, 21533421), (3, 7177807), (7, 3076203), (13, 1656417), (21, 1025401), (39, 552139), (91, 236631), (273, 78877)]