40857999

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7877}}^1$

素因数の和:7919

約数の個数: 32

約数和(自身を含む): 70586880

約数和(自身を除く): 29728881

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 5187, 7877, 23631, 55139, 102401, 149663, 165417, 307203, 448989, 716807, 1047641, 1945619, 2150421, 3142923, 5836857, 13619333, 40857999]

約数ペア:

[(1, 40857999), (3, 13619333), (7, 5836857), (13, 3142923), (19, 2150421), (21, 1945619), (39, 1047641), (57, 716807), (91, 448989), (133, 307203), (247, 165417), (273, 149663), (399, 102401), (741, 55139), (1729, 23631), (5187, 7877)]