21089838

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:453

約数の個数: 64

約数和(自身を含む): 53084160

約数和(自身を除く): 31994322

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 154, 191, 231, 239, 382, 462, 478, 573, 717, 1146, 1337, 1434, 1673, 2101, 2629, 2674, 3346, 4011, 4202, 5019, 5258, 6303, 7887, 8022, 10038, 12606, 14707, 15774, 18403, 29414, 36806, 44121, 45649, 55209, 88242, 91298, 110418, 136947, 273894, 319543, 502139, 639086, 958629, 1004278, 1506417, 1917258, 3012834, 3514973, 7029946, 10544919, 21089838]

約数ペア:

[(1, 21089838), (2, 10544919), (3, 7029946), (6, 3514973), (7, 3012834), (11, 1917258), (14, 1506417), (21, 1004278), (22, 958629), (33, 639086), (42, 502139), (66, 319543), (77, 273894), (154, 136947), (191, 110418), (231, 91298), (239, 88242), (382, 55209), (462, 45649), (478, 44121), (573, 36806), (717, 29414), (1146, 18403), (1337, 15774), (1434, 14707), (1673, 12606), (2101, 10038), (2629, 8022), (2674, 7887), (3346, 6303), (4011, 5258), (4202, 5019)]