30387721

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1511}}^1$

素因数の和:1561

約数の個数: 24

約数和(自身を含む): 39844224

約数和(自身を除く): 9456503

約数列:

[1, 7, 13, 17, 91, 119, 169, 221, 1183, 1511, 1547, 2873, 10577, 19643, 20111, 25687, 137501, 179809, 255359, 333931, 1787513, 2337517, 4341103, 30387721]

約数ペア:

[(1, 30387721), (7, 4341103), (13, 2337517), (17, 1787513), (91, 333931), (119, 255359), (169, 179809), (221, 137501), (1183, 25687), (1511, 20111), (1547, 19643), (2873, 10577)]