20558456

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4363}}^1$

素因数の和:4419

約数の個数: 32

約数和(自身を含む): 41894400

約数和(自身を除く): 21335944

約数列:

[1, 2, 4, 8, 19, 31, 38, 62, 76, 124, 152, 248, 589, 1178, 2356, 4363, 4712, 8726, 17452, 34904, 82897, 135253, 165794, 270506, 331588, 541012, 663176, 1082024, 2569807, 5139614, 10279228, 20558456]

約数ペア:

[(1, 20558456), (2, 10279228), (4, 5139614), (8, 2569807), (19, 1082024), (31, 663176), (38, 541012), (62, 331588), (76, 270506), (124, 165794), (152, 135253), (248, 82897), (589, 34904), (1178, 17452), (2356, 8726), (4363, 4712)]