201090721

素因数分解:

${\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1\times {\mathrm{743}}^1$

素因数の和:1056

約数の個数: 16

約数和(自身を含む): 219985920

約数和(自身を除く): 18895199

約数列:

[1, 13, 109, 191, 743, 1417, 2483, 9659, 20819, 80987, 141913, 270647, 1052831, 1844869, 15468517, 201090721]

約数ペア:

[(1, 201090721), (13, 15468517), (109, 1844869), (191, 1052831), (743, 270647), (1417, 141913), (2483, 80987), (9659, 20819)]