18970939

素因数分解:

${\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{509}}^1$

素因数の和:630

約数の個数: 16

約数和(自身を含む): 21248640

約数和(自身を除く): 2277701

約数列:

[1, 13, 47, 61, 509, 611, 793, 2867, 6617, 23923, 31049, 37271, 310999, 403637, 1459303, 18970939]

約数ペア:

[(1, 18970939), (13, 1459303), (47, 403637), (61, 310999), (509, 37271), (611, 31049), (793, 23923), (2867, 6617)]