201521957

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{10909}}^1$

素因数の和:10965

約数の個数: 24

約数和(自身を含む): 261185400

約数和(自身を除く): 59663443

約数列:

[1, 7, 13, 29, 49, 91, 203, 377, 637, 1421, 2639, 10909, 18473, 76363, 141817, 316361, 534541, 992719, 2214527, 4112693, 6949033, 15501689, 28788851, 201521957]

約数ペア:

[(1, 201521957), (7, 28788851), (13, 15501689), (29, 6949033), (49, 4112693), (91, 2214527), (203, 992719), (377, 534541), (637, 316361), (1421, 141817), (2639, 76363), (10909, 18473)]