397878494

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{148573}}^1$

素因数の和:148691

約数の個数: 16

約数和(自身を含む): 648971232

約数和(自身を除く): 251092738

約数列:

[1, 2, 13, 26, 103, 206, 1339, 2678, 148573, 297146, 1931449, 3862898, 15303019, 30606038, 198939247, 397878494]

約数ペア:

[(1, 397878494), (2, 198939247), (13, 30606038), (26, 15303019), (103, 3862898), (206, 1931449), (1339, 297146), (2678, 148573)]