20459145

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{719}}^1$

素因数の和:1005

約数の個数: 32

約数和(自身を含む): 37601280

約数和(自身を除く): 17142135

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 271, 719, 813, 1355, 1897, 2157, 3595, 4065, 5033, 5691, 9485, 10785, 15099, 25165, 28455, 75495, 194849, 584547, 974245, 1363943, 2922735, 4091829, 6819715, 20459145]

約数ペア:

[(1, 20459145), (3, 6819715), (5, 4091829), (7, 2922735), (15, 1363943), (21, 974245), (35, 584547), (105, 194849), (271, 75495), (719, 28455), (813, 25165), (1355, 15099), (1897, 10785), (2157, 9485), (3595, 5691), (4065, 5033)]