239651997

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{8741}}^1$

素因数の和:8813

約数の個数: 32

約数和(自身を含む): 372059520

約数和(自身を除く): 132407523

約数列:

[1, 3, 13, 19, 37, 39, 57, 111, 247, 481, 703, 741, 1443, 2109, 8741, 9139, 26223, 27417, 113633, 166079, 323417, 340899, 498237, 970251, 2159027, 4204421, 6144923, 6477081, 12613263, 18434769, 79883999, 239651997]

約数ペア:

[(1, 239651997), (3, 79883999), (13, 18434769), (19, 12613263), (37, 6477081), (39, 6144923), (57, 4204421), (111, 2159027), (247, 970251), (481, 498237), (703, 340899), (741, 323417), (1443, 166079), (2109, 113633), (8741, 27417), (9139, 26223)]