397284251

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{140831}}^1$

素因数の和:140882

約数の個数: 16

約数和(自身を含む): 504741888

約数和(自身を除く): 107457637

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 140831, 985817, 1830803, 4365761, 12815621, 30560327, 56754893, 397284251]

約数ペア:

[(1, 397284251), (7, 56754893), (13, 30560327), (31, 12815621), (91, 4365761), (217, 1830803), (403, 985817), (2821, 140831)]