21169485

素因数分解:

$3^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{821}}^1$

素因数の和:1026

約数の個数: 32

約数和(自身を含む): 37877760

約数和(自身を除く): 16708275

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 191, 573, 821, 955, 1719, 2463, 2865, 4105, 5157, 7389, 8595, 12315, 22167, 25785, 36945, 110835, 156811, 470433, 784055, 1411299, 2352165, 4233897, 7056495, 21169485]

約数ペア:

[(1, 21169485), (3, 7056495), (5, 4233897), (9, 2352165), (15, 1411299), (27, 784055), (45, 470433), (135, 156811), (191, 110835), (573, 36945), (821, 25785), (955, 22167), (1719, 12315), (2463, 8595), (2865, 7389), (4105, 5157)]