66633385

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{20921}}^1$

素因数の和:20953

約数の個数: 24

約数和(自身を含む): 100174536

約数和(自身を除く): 33541151

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 20921, 104605, 146447, 271973, 732235, 1025129, 1359865, 1903811, 5125645, 9519055, 13326677, 66633385]

約数ペア:

[(1, 66633385), (5, 13326677), (7, 9519055), (13, 5125645), (35, 1903811), (49, 1359865), (65, 1025129), (91, 732235), (245, 271973), (455, 146447), (637, 104605), (3185, 20921)]