399629758

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{204101}}^1$

素因数の和:204203

約数の個数: 16

約数和(自身を含む): 661290480

約数和(自身を除く): 261660722

約数列:

[1, 2, 11, 22, 89, 178, 979, 1958, 204101, 408202, 2245111, 4490222, 18164989, 36329978, 199814879, 399629758]

約数ペア:

[(1, 399629758), (2, 199814879), (11, 36329978), (22, 18164989), (89, 4490222), (178, 2245111), (979, 408202), (1958, 204101)]