21993528

素因数分解:

$2^3\times 3^1\times {\mathrm{71}}^1\times {\mathrm{12907}}^1$

素因数の和:12987

約数の個数: 32

約数和(自身を含む): 55762560

約数和(自身を除く): 33769032

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 71, 142, 213, 284, 426, 568, 852, 1704, 12907, 25814, 38721, 51628, 77442, 103256, 154884, 309768, 916397, 1832794, 2749191, 3665588, 5498382, 7331176, 10996764, 21993528]

約数ペア:

[(1, 21993528), (2, 10996764), (3, 7331176), (4, 5498382), (6, 3665588), (8, 2749191), (12, 1832794), (24, 916397), (71, 309768), (142, 154884), (213, 103256), (284, 77442), (426, 51628), (568, 38721), (852, 25814), (1704, 12907)]