18049912

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 34700400

約数和(自身を除く): 16650488

約数列:

[1, 2, 4, 8, 89, 101, 178, 202, 251, 356, 404, 502, 712, 808, 1004, 2008, 8989, 17978, 22339, 25351, 35956, 44678, 50702, 71912, 89356, 101404, 178712, 202808, 2256239, 4512478, 9024956, 18049912]

約数ペア:

[(1, 18049912), (2, 9024956), (4, 4512478), (8, 2256239), (89, 202808), (101, 178712), (178, 101404), (202, 89356), (251, 71912), (356, 50702), (404, 44678), (502, 35956), (712, 25351), (808, 22339), (1004, 17978), (2008, 8989)]