19965712

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{95989}}^1$

素因数の和:96010

約数の個数: 20

約数和(自身を含む): 41659660

約数和(自身を除く): 21693948

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 95989, 191978, 383956, 767912, 1247857, 1535824, 2495714, 4991428, 9982856, 19965712]

約数ペア:

[(1, 19965712), (2, 9982856), (4, 4991428), (8, 2495714), (13, 1535824), (16, 1247857), (26, 767912), (52, 383956), (104, 191978), (208, 95989)]