20991348

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{83299}}^1$

素因数の和:83316

約数の個数: 36

約数和(自身を含む): 60642400

約数和(自身を除く): 39651052

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 83299, 166598, 249897, 333196, 499794, 583093, 749691, 999588, 1166186, 1499382, 1749279, 2332372, 2998764, 3498558, 5247837, 6997116, 10495674, 20991348]

約数ペア:

[(1, 20991348), (2, 10495674), (3, 6997116), (4, 5247837), (6, 3498558), (7, 2998764), (9, 2332372), (12, 1749279), (14, 1499382), (18, 1166186), (21, 999588), (28, 749691), (36, 583093), (42, 499794), (63, 333196), (84, 249897), (126, 166598), (252, 83299)]