19805356

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{83921}}^1$

素因数の和:83984

約数の個数: 12

約数和(自身を含む): 35247240

約数和(自身を除く): 15441884

約数列:

[1, 2, 4, 59, 118, 236, 83921, 167842, 335684, 4951339, 9902678, 19805356]

約数ペア:

[(1, 19805356), (2, 9902678), (4, 4951339), (59, 335684), (118, 167842), (236, 83921)]