21679324

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{1973}}^1$

素因数の和:2085

約数の個数: 24

約数和(自身を含む): 39464208

約数和(自身を除く): 17784884

約数列:

[1, 2, 4, 41, 67, 82, 134, 164, 268, 1973, 2747, 3946, 5494, 7892, 10988, 80893, 132191, 161786, 264382, 323572, 528764, 5419831, 10839662, 21679324]

約数ペア:

[(1, 21679324), (2, 10839662), (4, 5419831), (41, 528764), (67, 323572), (82, 264382), (134, 161786), (164, 132191), (268, 80893), (1973, 10988), (2747, 7892), (3946, 5494)]