21955990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{3779}}^1$

素因数の和:3876

約数の個数: 32

約数和(自身を含む): 45722880

約数和(自身を除く): 23766890

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 83, 166, 415, 581, 830, 1162, 2905, 3779, 5810, 7558, 18895, 26453, 37790, 52906, 132265, 264530, 313657, 627314, 1568285, 2195599, 3136570, 4391198, 10977995, 21955990]

約数ペア:

[(1, 21955990), (2, 10977995), (5, 4391198), (7, 3136570), (10, 2195599), (14, 1568285), (35, 627314), (70, 313657), (83, 264530), (166, 132265), (415, 52906), (581, 37790), (830, 26453), (1162, 18895), (2905, 7558), (3779, 5810)]