21057666

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{3607}}^1$

素因数の和:3758

約数の個数: 32

約数和(自身を含む): 48491520

約数和(自身を除く): 27433854

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 139, 278, 417, 834, 973, 1946, 2919, 3607, 5838, 7214, 10821, 21642, 25249, 50498, 75747, 151494, 501373, 1002746, 1504119, 3008238, 3509611, 7019222, 10528833, 21057666]

約数ペア:

[(1, 21057666), (2, 10528833), (3, 7019222), (6, 3509611), (7, 3008238), (14, 1504119), (21, 1002746), (42, 501373), (139, 151494), (278, 75747), (417, 50498), (834, 25249), (973, 21642), (1946, 10821), (2919, 7214), (3607, 5838)]