21769228

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{32203}}^1$

素因数の和:32233

約数の個数: 18

約数和(自身を含む): 41253324

約数和(自身を除く): 19484096

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 32203, 64406, 128812, 418639, 837278, 1674556, 5442307, 10884614, 21769228]

約数ペア:

[(1, 21769228), (2, 10884614), (4, 5442307), (13, 1674556), (26, 837278), (52, 418639), (169, 128812), (338, 64406), (676, 32203)]