21000939956

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{1129}}^1\times {\mathrm{150011}}^1$

素因数の和:151175

約数の個数: 24

約数和(自身を含む): 37971037440

約数和(自身を除く): 16970097484

約数列:

[1, 2, 4, 31, 62, 124, 1129, 2258, 4516, 34999, 69998, 139996, 150011, 300022, 600044, 4650341, 9300682, 18601364, 169362419, 338724838, 677449676, 5250234989, 10500469978, 21000939956]

約数ペア:

[(1, 21000939956), (2, 10500469978), (4, 5250234989), (31, 677449676), (62, 338724838), (124, 169362419), (1129, 18601364), (2258, 9300682), (4516, 4650341), (34999, 600044), (69998, 300022), (139996, 150011)]