21001856

素因数分解:

$2^7\times {\mathrm{47}}^1\times {\mathrm{3491}}^1$

素因数の和:3552

約数の個数: 32

約数和(自身を含む): 42742080

約数和(自身を除く): 21740224

約数列:

[1, 2, 4, 8, 16, 32, 47, 64, 94, 128, 188, 376, 752, 1504, 3008, 3491, 6016, 6982, 13964, 27928, 55856, 111712, 164077, 223424, 328154, 446848, 656308, 1312616, 2625232, 5250464, 10500928, 21001856]

約数ペア:

[(1, 21001856), (2, 10500928), (4, 5250464), (8, 2625232), (16, 1312616), (32, 656308), (47, 446848), (64, 328154), (94, 223424), (128, 164077), (188, 111712), (376, 55856), (752, 27928), (1504, 13964), (3008, 6982), (3491, 6016)]