21838698

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{353}}^1\times {\mathrm{491}}^1$

素因数の和:859

約数の個数: 48

約数和(自身を含む): 54340416

約数和(自身を除く): 32501718

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 353, 491, 706, 982, 1059, 1473, 2118, 2471, 2946, 3177, 3437, 4419, 4942, 6354, 6874, 7413, 8838, 10311, 14826, 20622, 22239, 30933, 44478, 61866, 173323, 346646, 519969, 1039938, 1213261, 1559907, 2426522, 3119814, 3639783, 7279566, 10919349, 21838698]

約数ペア:

[(1, 21838698), (2, 10919349), (3, 7279566), (6, 3639783), (7, 3119814), (9, 2426522), (14, 1559907), (18, 1213261), (21, 1039938), (42, 519969), (63, 346646), (126, 173323), (353, 61866), (491, 44478), (706, 30933), (982, 22239), (1059, 20622), (1473, 14826), (2118, 10311), (2471, 8838), (2946, 7413), (3177, 6874), (3437, 6354), (4419, 4942)]