20615199

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:367

約数の個数: 32

約数和(自身を含む): 31670784

約数和(自身を除く): 11055585

約数列:

[1, 3, 11, 23, 33, 69, 157, 173, 253, 471, 519, 759, 1727, 1903, 3611, 3979, 5181, 5709, 10833, 11937, 27161, 39721, 43769, 81483, 119163, 131307, 298771, 624703, 896313, 1874109, 6871733, 20615199]

約数ペア:

[(1, 20615199), (3, 6871733), (11, 1874109), (23, 896313), (33, 624703), (69, 298771), (157, 131307), (173, 119163), (253, 81483), (471, 43769), (519, 39721), (759, 27161), (1727, 11937), (1903, 10833), (3611, 5709), (3979, 5181)]