21399504

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{63689}}^1$

素因数の和:63707

約数の個数: 40

約数和(自身を含む): 63180480

約数和(自身を除く): 41780976

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 63689, 127378, 191067, 254756, 382134, 445823, 509512, 764268, 891646, 1019024, 1337469, 1528536, 1783292, 2674938, 3057072, 3566584, 5349876, 7133168, 10699752, 21399504]

約数ペア:

[(1, 21399504), (2, 10699752), (3, 7133168), (4, 5349876), (6, 3566584), (7, 3057072), (8, 2674938), (12, 1783292), (14, 1528536), (16, 1337469), (21, 1019024), (24, 891646), (28, 764268), (42, 509512), (48, 445823), (56, 382134), (84, 254756), (112, 191067), (168, 127378), (336, 63689)]