19993090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1361}}^1$

素因数の和:1494

約数の個数: 32

約数和(自身を含む): 39127536

約数和(自身を除く): 19134446

約数列:

[1, 2, 5, 10, 13, 26, 65, 113, 130, 226, 565, 1130, 1361, 1469, 2722, 2938, 6805, 7345, 13610, 14690, 17693, 35386, 88465, 153793, 176930, 307586, 768965, 1537930, 1999309, 3998618, 9996545, 19993090]

約数ペア:

[(1, 19993090), (2, 9996545), (5, 3998618), (10, 1999309), (13, 1537930), (26, 768965), (65, 307586), (113, 176930), (130, 153793), (226, 88465), (565, 35386), (1130, 17693), (1361, 14690), (1469, 13610), (2722, 7345), (2938, 6805)]