19853005

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{3943}}^1$

素因数の和:4020

約数の個数: 16

約数和(自身を含む): 25557120

約数和(自身を除く): 5704115

約数列:

[1, 5, 19, 53, 95, 265, 1007, 3943, 5035, 19715, 74917, 208979, 374585, 1044895, 3970601, 19853005]

約数ペア:

[(1, 19853005), (5, 3970601), (19, 1044895), (53, 374585), (95, 208979), (265, 74917), (1007, 19715), (3943, 5035)]