21597135

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2897}}^1$

素因数の和:2983

約数の個数: 32

約数和(自身を含む): 40061952

約数和(自身を除く): 18464817

約数列:

[1, 3, 5, 7, 15, 21, 35, 71, 105, 213, 355, 497, 1065, 1491, 2485, 2897, 7455, 8691, 14485, 20279, 43455, 60837, 101395, 205687, 304185, 617061, 1028435, 1439809, 3085305, 4319427, 7199045, 21597135]

約数ペア:

[(1, 21597135), (3, 7199045), (5, 4319427), (7, 3085305), (15, 1439809), (21, 1028435), (35, 617061), (71, 304185), (105, 205687), (213, 101395), (355, 60837), (497, 43455), (1065, 20279), (1491, 14485), (2485, 8691), (2897, 7455)]