21344680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{76231}}^1$

素因数の和:76249

約数の個数: 32

約数和(自身を含む): 54887040

約数和(自身を除く): 33542360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 76231, 152462, 304924, 381155, 533617, 609848, 762310, 1067234, 1524620, 2134468, 2668085, 3049240, 4268936, 5336170, 10672340, 21344680]

約数ペア:

[(1, 21344680), (2, 10672340), (4, 5336170), (5, 4268936), (7, 3049240), (8, 2668085), (10, 2134468), (14, 1524620), (20, 1067234), (28, 762310), (35, 609848), (40, 533617), (56, 381155), (70, 304924), (140, 152462), (280, 76231)]