20911635

素因数分解:

$3^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{811}}^1$

素因数の和:1016

約数の個数: 32

約数和(自身を含む): 37416960

約数和(自身を除く): 16505325

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 191, 573, 811, 955, 1719, 2433, 2865, 4055, 5157, 7299, 8595, 12165, 21897, 25785, 36495, 109485, 154901, 464703, 774505, 1394109, 2323515, 4182327, 6970545, 20911635]

約数ペア:

[(1, 20911635), (3, 6970545), (5, 4182327), (9, 2323515), (15, 1394109), (27, 774505), (45, 464703), (135, 154901), (191, 109485), (573, 36495), (811, 25785), (955, 21897), (1719, 12165), (2433, 8595), (2865, 7299), (4055, 5157)]