20438005

素因数分解:

$5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{2423}}^1$

素因数の和:2676

約数の個数: 16

約数和(自身を含む): 28157184

約数和(自身を除く): 7719179

約数列:

[1, 5, 7, 35, 241, 1205, 1687, 2423, 8435, 12115, 16961, 84805, 583943, 2919715, 4087601, 20438005]

約数ペア:

[(1, 20438005), (5, 4087601), (7, 2919715), (35, 583943), (241, 84805), (1205, 16961), (1687, 12115), (2423, 8435)]