20947575

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{25391}}^1$

素因数の和:25415

約数の個数: 24

約数和(自身を含む): 37783296

約数和(自身を除く): 16835721

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 165, 275, 825, 25391, 76173, 126955, 279301, 380865, 634775, 837903, 1396505, 1904325, 4189515, 6982525, 20947575]

約数ペア:

[(1, 20947575), (3, 6982525), (5, 4189515), (11, 1904325), (15, 1396505), (25, 837903), (33, 634775), (55, 380865), (75, 279301), (165, 126955), (275, 76173), (825, 25391)]