20738535

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{433}}^1$

素因数の和:575

約数の個数: 32

約数和(自身を含む): 34664448

約数和(自身を除く): 13925913

約数列:

[1, 3, 5, 15, 31, 93, 103, 155, 309, 433, 465, 515, 1299, 1545, 2165, 3193, 6495, 9579, 13423, 15965, 40269, 44599, 47895, 67115, 133797, 201345, 222995, 668985, 1382569, 4147707, 6912845, 20738535]

約数ペア:

[(1, 20738535), (3, 6912845), (5, 4147707), (15, 1382569), (31, 668985), (93, 222995), (103, 201345), (155, 133797), (309, 67115), (433, 47895), (465, 44599), (515, 40269), (1299, 15965), (1545, 13423), (2165, 9579), (3193, 6495)]