17820902

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{21893}}^1$

素因数の和:21943

約数の個数: 16

約数和(自身を含む): 29950992

約数和(自身を除く): 12130090

約数列:

[1, 2, 11, 22, 37, 74, 407, 814, 21893, 43786, 240823, 481646, 810041, 1620082, 8910451, 17820902]

約数ペア:

[(1, 17820902), (2, 8910451), (11, 1620082), (22, 810041), (37, 481646), (74, 240823), (407, 43786), (814, 21893)]