21892208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{105251}}^1$

素因数の和:105272

約数の個数: 20

約数和(自身を含む): 45679368

約数和(自身を除く): 23787160

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 105251, 210502, 421004, 842008, 1368263, 1684016, 2736526, 5473052, 10946104, 21892208]

約数ペア:

[(1, 21892208), (2, 10946104), (4, 5473052), (8, 2736526), (13, 1684016), (16, 1368263), (26, 842008), (52, 421004), (104, 210502), (208, 105251)]