21697816

素因数分解:

$2^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{5783}}^1$

素因数の和:5863

約数の個数: 32

約数和(自身を含む): 47197440

約数和(自身を除く): 25499624

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 67, 134, 268, 469, 536, 938, 1876, 3752, 5783, 11566, 23132, 40481, 46264, 80962, 161924, 323848, 387461, 774922, 1549844, 2712227, 3099688, 5424454, 10848908, 21697816]

約数ペア:

[(1, 21697816), (2, 10848908), (4, 5424454), (7, 3099688), (8, 2712227), (14, 1549844), (28, 774922), (56, 387461), (67, 323848), (134, 161924), (268, 80962), (469, 46264), (536, 40481), (938, 23132), (1876, 11566), (3752, 5783)]