21763736

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{691}}^1$

素因数の和:855

約数の個数: 32

約数和(自身を含む): 42516480

約数和(自身を除く): 20752744

約数列:

[1, 2, 4, 8, 31, 62, 124, 127, 248, 254, 508, 691, 1016, 1382, 2764, 3937, 5528, 7874, 15748, 21421, 31496, 42842, 85684, 87757, 171368, 175514, 351028, 702056, 2720467, 5440934, 10881868, 21763736]

約数ペア:

[(1, 21763736), (2, 10881868), (4, 5440934), (8, 2720467), (31, 702056), (62, 351028), (124, 175514), (127, 171368), (248, 87757), (254, 85684), (508, 42842), (691, 31496), (1016, 21421), (1382, 15748), (2764, 7874), (3937, 5528)]