20711906

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{1931}}^1$

素因数の和:2137

約数の個数: 16

約数和(自身を含む): 32272128

約数和(自身を除く): 11560222

約数列:

[1, 2, 31, 62, 173, 346, 1931, 3862, 5363, 10726, 59861, 119722, 334063, 668126, 10355953, 20711906]

約数ペア:

[(1, 20711906), (2, 10355953), (31, 668126), (62, 334063), (173, 119722), (346, 59861), (1931, 10726), (3862, 5363)]