21380458912

素因数分解:

$2^5\times {\mathrm{101}}^1\times {\mathrm{6615241}}^1$

素因数の和:6615352

約数の個数: 24

約数和(自身を含む): 42509545092

約数和(自身を除く): 21129086180

約数列:

[1, 2, 4, 8, 16, 32, 101, 202, 404, 808, 1616, 3232, 6615241, 13230482, 26460964, 52921928, 105843856, 211687712, 668139341, 1336278682, 2672557364, 5345114728, 10690229456, 21380458912]

約数ペア:

[(1, 21380458912), (2, 10690229456), (4, 5345114728), (8, 2672557364), (16, 1336278682), (32, 668139341), (101, 211687712), (202, 105843856), (404, 52921928), (808, 26460964), (1616, 13230482), (3232, 6615241)]