19994566

素因数分解:

$2^1\times {\mathrm{31}}^2\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:268

約数の個数: 24

約数和(自身を含む): 31601232

約数和(自身を除く): 11606666

約数列:

[1, 2, 31, 62, 101, 103, 202, 206, 961, 1922, 3131, 3193, 6262, 6386, 10403, 20806, 97061, 98983, 194122, 197966, 322493, 644986, 9997283, 19994566]

約数ペア:

[(1, 19994566), (2, 9997283), (31, 644986), (62, 322493), (101, 197966), (103, 194122), (202, 98983), (206, 97061), (961, 20806), (1922, 10403), (3131, 6386), (3193, 6262)]