398435518

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{148781}}^1$

素因数の和:148899

約数の個数: 16

約数和(自身を含む): 649879776

約数和(自身を除く): 251444258

約数列:

[1, 2, 13, 26, 103, 206, 1339, 2678, 148781, 297562, 1934153, 3868306, 15324443, 30648886, 199217759, 398435518]

約数ペア:

[(1, 398435518), (2, 199217759), (13, 30648886), (26, 15324443), (103, 3868306), (206, 1934153), (1339, 297562), (2678, 148781)]