20987442

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{166567}}^1$

素因数の和:166582

約数の個数: 24

約数和(自身を含む): 51969216

約数和(自身を除く): 30981774

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 166567, 333134, 499701, 999402, 1165969, 1499103, 2331938, 2998206, 3497907, 6995814, 10493721, 20987442]

約数ペア:

[(1, 20987442), (2, 10493721), (3, 6995814), (6, 3497907), (7, 2998206), (9, 2331938), (14, 1499103), (18, 1165969), (21, 999402), (42, 499701), (63, 333134), (126, 166567)]