2021968585

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{634841}}^1$

素因数の和:634873

約数の個数: 24

約数和(自身を含む): 3039623496

約数和(自身を除く): 1017654911

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 634841, 3174205, 4443887, 8252933, 22219435, 31107209, 41264665, 57770531, 155536045, 288852655, 404393717, 2021968585]

約数ペア:

[(1, 2021968585), (5, 404393717), (7, 288852655), (13, 155536045), (35, 57770531), (49, 41264665), (65, 31107209), (91, 22219435), (245, 8252933), (455, 4443887), (637, 3174205), (3185, 634841)]