21770008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{209327}}^1$

素因数の和:209346

約数の個数: 16

約数和(自身を含む): 43958880

約数和(自身を除く): 22188872

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 209327, 418654, 837308, 1674616, 2721251, 5442502, 10885004, 21770008]

約数ペア:

[(1, 21770008), (2, 10885004), (4, 5442502), (8, 2721251), (13, 1674616), (26, 837308), (52, 418654), (104, 209327)]