19894004

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{29429}}^1$

素因数の和:29459

約数の個数: 18

約数和(自身を含む): 37699830

約数和(自身を除く): 17805826

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 29429, 58858, 117716, 382577, 765154, 1530308, 4973501, 9947002, 19894004]

約数ペア:

[(1, 19894004), (2, 9947002), (4, 4973501), (13, 1530308), (26, 765154), (52, 382577), (169, 117716), (338, 58858), (676, 29429)]