21500206

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6949}}^1$

素因数の和:6988

約数の個数: 32

約数和(自身を含む): 42033600

約数和(自身を除く): 20533394

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 91, 119, 182, 221, 238, 442, 1547, 3094, 6949, 13898, 48643, 90337, 97286, 118133, 180674, 236266, 632359, 826931, 1264718, 1535729, 1653862, 3071458, 10750103, 21500206]

約数ペア:

[(1, 21500206), (2, 10750103), (7, 3071458), (13, 1653862), (14, 1535729), (17, 1264718), (26, 826931), (34, 632359), (91, 236266), (119, 180674), (182, 118133), (221, 97286), (238, 90337), (442, 48643), (1547, 13898), (3094, 6949)]