21851444

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{317}}^1\times {\mathrm{907}}^1$

素因数の和:1247

約数の個数: 24

約数和(自身を含む): 40424160

約数和(自身を除く): 18572716

約数列:

[1, 2, 4, 19, 38, 76, 317, 634, 907, 1268, 1814, 3628, 6023, 12046, 17233, 24092, 34466, 68932, 287519, 575038, 1150076, 5462861, 10925722, 21851444]

約数ペア:

[(1, 21851444), (2, 10925722), (4, 5462861), (19, 1150076), (38, 575038), (76, 287519), (317, 68932), (634, 34466), (907, 24092), (1268, 17233), (1814, 12046), (3628, 6023)]