21321118

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3779}}^1$

素因数の和:3832

約数の個数: 32

約数和(自身を含む): 40642560

約数和(自身を除く): 19321442

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 182, 217, 403, 434, 806, 2821, 3779, 5642, 7558, 26453, 49127, 52906, 98254, 117149, 234298, 343889, 687778, 820043, 1522937, 1640086, 3045874, 10660559, 21321118]

約数ペア:

[(1, 21321118), (2, 10660559), (7, 3045874), (13, 1640086), (14, 1522937), (26, 820043), (31, 687778), (62, 343889), (91, 234298), (182, 117149), (217, 98254), (403, 52906), (434, 49127), (806, 26453), (2821, 7558), (3779, 5642)]