21547976

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 46656000

約数和(自身を除く): 25108024

約数列:

[1, 2, 4, 8, 17, 19, 31, 34, 38, 62, 68, 76, 124, 136, 152, 248, 269, 323, 527, 538, 589, 646, 1054, 1076, 1178, 1292, 2108, 2152, 2356, 2584, 4216, 4573, 4712, 5111, 8339, 9146, 10013, 10222, 16678, 18292, 20026, 20444, 33356, 36584, 40052, 40888, 66712, 80104, 86887, 141763, 158441, 173774, 283526, 316882, 347548, 567052, 633764, 695096, 1134104, 1267528, 2693497, 5386994, 10773988, 21547976]

約数ペア:

[(1, 21547976), (2, 10773988), (4, 5386994), (8, 2693497), (17, 1267528), (19, 1134104), (31, 695096), (34, 633764), (38, 567052), (62, 347548), (68, 316882), (76, 283526), (124, 173774), (136, 158441), (152, 141763), (248, 86887), (269, 80104), (323, 66712), (527, 40888), (538, 40052), (589, 36584), (646, 33356), (1054, 20444), (1076, 20026), (1178, 18292), (1292, 16678), (2108, 10222), (2152, 10013), (2356, 9146), (2584, 8339), (4216, 5111), (4573, 4712)]